Irish orthography is the
set of conventions used to write
Irish. A
spelling reform in the mid-20th century led to , the modern
standard written form used by the
Government of Ireland
The Government of Ireland () is the executive (government), executive authority of Republic of Ireland, Ireland, headed by the , the head of government. The government – also known as the cabinet (government), cabinet – is composed of Mini ...
, which regulates both
spelling
Spelling is a set of conventions for written language regarding how graphemes should correspond to the sounds of spoken language. Spelling is one of the elements of orthography, and highly standardized spelling is a prescriptive element.
Spelli ...
and
grammar
In linguistics, grammar is the set of rules for how a natural language is structured, as demonstrated by its speakers or writers. Grammar rules may concern the use of clauses, phrases, and words. The term may also refer to the study of such rul ...
. The reform removed inter-dialectal
silent letter
In an alphabetic writing system, a silent letter is a letter that, in a particular word, does not correspond to any sound in the word's pronunciation. In linguistics, a silent letter is often symbolised with a null sign , which resembles the ...
s, simplified some
letter sequences, and modernised archaic spellings to reflect modern pronunciation, but it also removed letters pronounced in some dialects but not in others.
Irish spelling represents all Irish
dialect
A dialect is a Variety (linguistics), variety of language spoken by a particular group of people. This may include dominant and standard language, standardized varieties as well as Vernacular language, vernacular, unwritten, or non-standardize ...
s to a high degree despite their considerable phonological variation, e.g. ("tree") is read in Mayo and
Ulster
Ulster (; or ; or ''Ulster'') is one of the four traditional or historic provinces of Ireland, Irish provinces. It is made up of nine Counties of Ireland, counties: six of these constitute Northern Ireland (a part of the United Kingdom); t ...
, in Galway, or in
Munster
Munster ( or ) is the largest of the four provinces of Ireland, located in the south west of the island. In early Ireland, the Kingdom of Munster was one of the kingdoms of Gaelic Ireland ruled by a "king of over-kings" (). Following the Nor ...
. Some words may have dialectal pronunciations not reflected by their standard spelling, and they sometimes have distinct dialectal spellings to reflect this.
Alphabet

Latin script
The Latin script, also known as the Roman script, is a writing system based on the letters of the classical Latin alphabet, derived from a form of the Greek alphabet which was in use in the ancient Greek city of Cumae in Magna Graecia. The Gree ...
has been the
writing system
A writing system comprises a set of symbols, called a ''script'', as well as the rules by which the script represents a particular language. The earliest writing appeared during the late 4th millennium BC. Throughout history, each independen ...
used to write Irish since the 5th century, when it replaced
Ogham, which was used to write
Primitive Irish and
Old Irish
Old Irish, also called Old Gaelic (, Ogham, Ogham script: ᚌᚑᚔᚇᚓᚂᚉ; ; ; or ), is the oldest form of the Goidelic languages, Goidelic/Gaelic language for which there are extensive written texts. It was used from 600 to 900. The ...
. Prior to the mid-20th century,
Gaelic type
Gaelic type (sometimes called Irish character, Irish type, or Gaelic script) is a family of Insular script typefaces devised for printing Early Modern Irish. It was widely used from the 16th century until the mid-18th century in Scotland and t ...
() was the main
typeface
A typeface (or font family) is a design of Letter (alphabet), letters, Numerical digit, numbers and other symbols, to be used in printing or for electronic display. Most typefaces include variations in size (e.g., 24 point), weight (e.g., light, ...
used to write Irish; now, it is usually replaced by
Roman type
In Latin script typography, roman is one of the three main kinds of Typeface, historical type, alongside blackletter and Italic type, italic. Sometimes called normal or regular, it is distinct from these two for its upright style (relative to the ...
(). The use of Ogham and Gaelic type today is restricted to decorative or self-consciously traditional contexts. The
dot above a
lenited letter in Gaelic type is usually replaced by a following in Roman type (e.g. → ).
Letters and letter names

The traditional Irish
alphabet
An alphabet is a standard set of letter (alphabet), letters written to represent particular sounds in a spoken language. Specifically, letters largely correspond to phonemes as the smallest sound segments that can distinguish one word from a ...
() consists of 18 letters: . It does not contain , although they are used in scientific terminology and modern
loanword
A loanword (also a loan word, loan-word) is a word at least partly assimilated from one language (the donor language) into another language (the recipient or target language), through the process of borrowing. Borrowing is a metaphorical term t ...
s. occurs in a small number of (mainly
onomatopoeic) native words (e.g. "to quack" and "caw") and
colloquialism
Colloquialism (also called ''colloquial language'', ''colloquial speech'', ''everyday language'', or ''general parlance'') is the linguistic style used for casual and informal communication. It is the most common form of speech in conversation amo ...
s (e.g. for "chirp" and for "screw"). , when not
prefix
A prefix is an affix which is placed before the stem of a word. Particularly in the study of languages, a prefix is also called a preformative, because it alters the form of the word to which it is affixed.
Prefixes, like other affixes, can b ...
ed to a word initial vowel or after a consonant to show
lenition
In linguistics, lenition is a sound change that alters consonants, making them "weaker" in some way. The word ''lenition'' itself means "softening" or "weakening" (from Latin 'weak'). Lenition can happen both synchronically (within a language ...
, primarily occurs word initially in loanwords, e.g. "hat". is the only letter not listed by
Ó Dónaill.
Vowels may be
accented with an
acute accent
The acute accent (), ,
is a diacritic used in many modern written languages with alphabets based on the Latin alphabet, Latin, Cyrillic script, Cyrillic, and Greek alphabet, Greek scripts. For the most commonly encountered uses of the accen ...
(; see
below). Accented letters are considered variants of their unaccented equivalent, and they follow their unaccented equivalents in dictionaries (i.e. , , , ...).
English letter names are generally used in both colloquial and formal speech but there are modern Irish letter names (based on the original
Latin names), similar to other languages that use a
Latin script alphabet. Tree names were historically used to name the letters. Tradition taught that they all derived from the
names of Ogham letters, though it is now known that only some of the earliest were named after trees.
Grapheme to phoneme correspondence
In
grapheme
In linguistics, a grapheme is the smallest functional unit of a writing system.
The word ''grapheme'' is derived from Ancient Greek ('write'), and the suffix ''-eme'' by analogy with ''phoneme'' and other emic units. The study of graphemes ...
to
phoneme
A phoneme () is any set of similar Phone (phonetics), speech sounds that are perceptually regarded by the speakers of a language as a single basic sound—a smallest possible Phonetics, phonetic unit—that helps distinguish one word fr ...
correspondence tables on this page:
* "U" stands for Mayo and Ulster Irish, "C" for southern Connacht Irish, and "M" for Munster Irish.
* Initially and finally mean word initial or final unless stated otherwise.
* means silent, i.e. that the
letter(s) are not pronounced.
* The
IPA transcriptions of examples on this page are in
Connacht Irish.
See
Irish phonology for an explanation of the symbols used and
Irish initial mutations
Irish language, Irish, like all modern Celtic languages, is characterised by its initial consonant mutations. These mutations affect the initial consonant of a word under specific morphology (linguistics), morphological and syntax, syntactic ...
for an explanation of eclipsis and lenition.
Consonants
Consonant
In articulatory phonetics, a consonant is a speech sound that is articulated with complete or partial closure of the vocal tract, except for the h sound, which is pronounced without any stricture in the vocal tract. Examples are and pronou ...
s are generally "broad" (
velarised) when beside and "slender" (
palatalised) when beside .
Irish orthography does not allow consonant letters or digraphs to be
doubled (except in ), in compound words which would result in doubled consonants they are broken up by a hyphen (
see below).
Vowels
Vowel
A vowel is a speech sound pronounced without any stricture in the vocal tract, forming the nucleus of a syllable. Vowels are one of the two principal classes of speech sounds, the other being the consonant. Vowels vary in quality, in loudness a ...
sequences are common in Irish spelling due to the "" ("slender with slender and broad with broad") rule, i.e. that the vowels on either side of any consonant (or
consonant cluster) must be both slender () or both broad (), to unambiguously determine if the consonant(s) are broad or slender.
An apparent exception is , which is followed by a broad consonant despite the .
The pronunciation of vowels in Irish is mostly predictable from the following rules:
* Unstressed short vowels are generally reduced to .
* is silent before a broad vowel.
* is silent before and after a vowel (except sometimes in ).
* have multiple pronunciations that depend on adjacent consonants.
*
Accented vowels () represent
long vowels and in
digraphs and
trigraphs containing them, surrounding unaccented vowels are silent, but there are several exceptions, e.g. when preceded by two unaccented vowels.
* Accented vowels in succession are both pronounced, e.g. "sixth", "royal, kingly, majestic", "sympathy", etc.
* and are long before , e.g. "wild", "twine"
* A following lengthens some vowels and in Munster and Connacht a following syllable-final or word-final may lengthen or diphthongise some vowels depending on dialect.
Followed by
When followed by , a short vowel usually forms a
diphthong
A diphthong ( ), also known as a gliding vowel or a vowel glide, is a combination of two adjacent vowel sounds within the same syllable. Technically, a diphthong is a vowel with two different targets: that is, the tongue (and/or other parts of ...
or lengthens. For , see - in
exceptions in verb forms.
Epenthesis
After a
short vowel
In linguistics, vowel length is the perceived or actual duration of a vowel sound when pronounced. Vowels perceived as shorter are often called short vowels and those perceived as longer called long vowels.
On one hand, many languages do not ...
, an unwritten
epenthetic gets inserted between + (as well as , when derived from devoiced ), when within a
morpheme
A morpheme is any of the smallest meaningful constituents within a linguistic expression and particularly within a word. Many words are themselves standalone morphemes, while other words contain multiple morphemes; in linguistic terminology, this ...
boundary, e.g. "blue", "red", "dark", "name", "prickly, thorny"’ "child", "silver, money". The main exception to this is which is mainly used for or .
Epenthesis does not occur after
long vowels and diphthongs, e.g. "term" or "duty", or across
morpheme
A morpheme is any of the smallest meaningful constituents within a linguistic expression and particularly within a word. Many words are themselves standalone morphemes, while other words contain multiple morphemes; in linguistic terminology, this ...
boundaries (i.e. after prefixes and in compound words), e.g. "grandson" (from "close, near" + "son"), "very quiet" (from "very" + "quiet"), "carriageway, roadway" (from "car" + "way, road").
In Munster, epenthesis also occurs across morpheme boundaries, when follow (after any vowel) or (after short vowels), and when follows .
Exceptions in verb forms
In
verb
A verb is a word that generally conveys an action (''bring'', ''read'', ''walk'', ''run'', ''learn''), an occurrence (''happen'', ''become''), or a state of being (''be'', ''exist'', ''stand''). In the usual description of English, the basic f ...
forms, some letters and letter combinations are pronounced differently from elsewhere.
Diacritics

currently uses one
diacritic
A diacritic (also diacritical mark, diacritical point, diacritical sign, or accent) is a glyph added to a letter or to a basic glyph. The term derives from the Ancient Greek (, "distinguishing"), from (, "to distinguish"). The word ''diacrit ...
, the acute accent, though traditionally a second was used, the overdot. If diacritics are unavailable, e.g. on a computer using
ASCII
ASCII ( ), an acronym for American Standard Code for Information Interchange, is a character encoding standard for representing a particular set of 95 (English language focused) printable character, printable and 33 control character, control c ...
, the overdot is replaced by a following , e.g. → "He/It was" and there is no standard for replacing an acute accent, though sometimes it is indicated by a following
slash, e.g. → "truth".
The
acute accent
The acute accent (), ,
is a diacritic used in many modern written languages with alphabets based on the Latin alphabet, Latin, Cyrillic script, Cyrillic, and Greek alphabet, Greek scripts. For the most commonly encountered uses of the accen ...
(; or "long (sign)") is used to indicate a long vowel, as in "boat". However, there are other conventions to indicate a long vowel, such as:
* A following , e.g. "high", "destruction", "fist", and, in Connacht, a word-final , e.g. "time".
* The digraphs , e.g. "gay", "bare", "music".
* The tri/tetragraphs , e.g. "neighbour", "Munster".
* and before or , e.g. "wild", "twine".
The
overdot (; "dot of lenition") was traditionally used to indicate
lenition
In linguistics, lenition is a sound change that alters consonants, making them "weaker" in some way. The word ''lenition'' itself means "softening" or "weakening" (from Latin 'weak'). Lenition can happen both synchronically (within a language ...
, though exclusively uses a following for this purpose. In
Old Irish
Old Irish, also called Old Gaelic (, Ogham, Ogham script: ᚌᚑᚔᚇᚓᚂᚉ; ; ; or ), is the oldest form of the Goidelic languages, Goidelic/Gaelic language for which there are extensive written texts. It was used from 600 to 900. The ...
, the overdot was only used for , while the following was used for and the lenition of other letters was not indicated. Later the two methods were used in parallel to represent lenition of any consonant (except ) until the standard practice became to use the overdot in Gaelic type and the following in Roman type. Thus the dotted letters ( "struck letters") are equivalent to letters followed by a , i.e. .
Lowercase
Letter case is the distinction between the letters that are in larger uppercase or capitals (more formally ''majuscule'') and smaller lowercase (more formally '' minuscule'') in the written representation of certain languages. The writing system ...
has no
tittle
The tittle or superscript dot is the dot on top of lowercase ''i'' and ''j''. In English writing the tittle is a diacritic which only appears as part of these glyphs, but diacritic dots can appear over other letters in various languages. In mos ...
in Gaelic type, and
road signs in the Republic of Ireland
Road signs in Ireland do not differ greatly from those used elsewhere in Europe – with the notable exception that hazard or warning signs follow the 'Manual on Uniform Traffic Control Devices, MUTCD' style of a yellow diamond shape. The symbo ...
. However, as printed and electronic material like books, newspapers and web pages use Roman type almost invariably, the tittle is generally shown. Irish does not
graphemically distinguish
dotted i and
dotless ı, i.e. they are not different letters as they are in, e.g.
Turkish and
Azeri.
Punctuation

Irish
punctuation
Punctuation marks are marks indicating how a piece of writing, written text should be read (silently or aloud) and, consequently, understood. The oldest known examples of punctuation marks were found in the Mesha Stele from the 9th century BC, c ...
is similar to English. An apparent exception is the
Tironian et (; ) which abbreviates the word "and", like the
ampersand
The ampersand, also known as the and sign, is the logogram , representing the grammatical conjunction, conjunction "and". It originated as a typographic ligature, ligature of the letters of the word (Latin for "and").
Etymology
Tradi ...
() abbreviates "and" in English. It is generally substituted by a
seven () in texts.
A
hyphen
The hyphen is a punctuation mark used to join words and to separate syllables of a single word. The use of hyphens is called hyphenation.
The hyphen is sometimes confused with dashes (en dash , em dash and others), which are wider, or with t ...
() is used in Irish after when prefixed to a masculine vowel-initial word as an
initial mutation, e.g. "the bread", "their daughter". However, it is omitted when the vowel is capitalised, e.g. "the Scotsman", "Our Father". No hyphen is used when is prefixed to a vowel-initial word, e.g. "her daughter".
A hyphen is also used in
compound words
In linguistics, a compound is a lexeme (less precisely, a word or sign) that consists of more than one stem. Compounding, composition or nominal composition is the process of word formation that creates compound lexemes. Compounding occurs when t ...
under certain circumstances:
* between two vowels, e.g. "misfortune"
* between two similar consonants, e.g. "bad language", "prompt payment"
* in a three-part compound, e.g. "permanent joint committee"
* after the prefixes , , before a word beginning with , e.g. "bad tasting", "subsume", "mortality"
* in capitalised titles, e.g. "the Chief Justice"
* after "very" and "good", e.g. "very big", "goodwill"
An
apostrophe
The apostrophe (, ) is a punctuation mark, and sometimes a diacritical mark, in languages that use the Latin alphabet and some other alphabets. In English, the apostrophe is used for two basic purposes:
* The marking of the omission of one o ...
() is used to indicate an omitted vowel in the following cases:
* the prepositions "from" and "to" both become before a vowel or + vowel, as in "She fell from a horse" and "Give it to the landlord"
* the possessive pronouns "my" and "your (singular)" become and before a vowel or + vowel, as in "my youth", "your tooth"
* the preverbal
particle
In the physical sciences, a particle (or corpuscle in older texts) is a small localized object which can be described by several physical or chemical properties, such as volume, density, or mass.
They vary greatly in size or quantity, from s ...
becomes before a vowel or + vowel, as in "I raised", "he would wait"
* the copular particle becomes before a vowel or + vowel, as in "I found that odd" and "maybe". However, is used before the pronouns , , , as in "It was the generals who kept the power"
Capitalisation
Capitalisation
Capitalization ( North American spelling; also British spelling in Oxford) or capitalisation (Commonwealth English; all other meanings) is writing a word with its first letter as a capital letter (uppercase letter) and the remaining letters in ...
rules are similar to English. However, a prefixed letter remains in lowercase when the base initial is capitalised ( "China"). For text written in
all caps
In typography, text or font in all caps (short for "all capitals") contains capital letters without any lowercase letters. For example: All-caps text can be seen in legal documents, advertisements, newspaper headlines, and the titles on book co ...
, the prefixed letter is kept in lowercase, or
small caps
In typography, small caps (short for small capitals) are grapheme, characters typeset with glyphs that resemble uppercase letters but reduced in height and weight close to the surrounding lowercase letters or text figures. Small caps are used i ...
( "THE HISTORY OF IRELAND"). An initial capital is used for:
* Start of sentences
* Names of people, places (except the words , , ), languages, and adjectives of people and places ( "Michael Murphy"; "Mary McEntee"; "Burke"; "
Slievenamon"; "French"; "Italian food")
* Names of months, weeks and feast-days ( "September"; "Monday"; "Christmas Eve")
* "day" ( "on Monday")
* Definite
title
A title is one or more words used before or after a person's name, in certain contexts. It may signify their generation, official position, military rank, professional or academic qualification, or nobility. In some languages, titles may be ins ...
s
Abbreviations
Most Irish
abbreviation
An abbreviation () is a shortened form of a word or phrase, by any method including shortening (linguistics), shortening, contraction (grammar), contraction, initialism (which includes acronym), or crasis. An abbreviation may be a shortened for ...
s are straightforward, e.g. → ("page → p.") and → (" (for example) → e.g."), but two that require explanation are: → ("that is → i.e.") and → ("
et cetera (and so forth) → &c./etc."). Like in English, follows an
ordinal numeral, e.g. "St. Patrick's day is the 17th
ayof March".
Spelling reform
The literary
Classical Irish which survived till the 17th century was archaic; the first attempt at simplification was not until 1639.
The spelling represented a
dialect continuum
A dialect continuum or dialect chain is a series of Variety (linguistics), language varieties spoken across some geographical area such that neighboring varieties are Mutual intelligibility, mutually intelligible, but the differences accumulat ...
including
distinctions lost in all surviving dialects by the
Gaelic revival
The Gaelic revival () was the late-nineteenth-century national revival of interest in the Irish language (also known as Gaelic) and Irish Gaelic culture (including folklore, mythology, sports, music, arts, etc.). Irish had diminished as a sp ...
of the late 19th century.
The idea of a
spelling reform, linked to the use of Roman or Gaelic type, was controversial in the early decades of the 20th century.
The
Irish Texts Society's 1904
Irish-English dictionary by
Patrick S. Dinneen used traditional spellings.
After the creation of the
Irish Free State
The Irish Free State (6 December 192229 December 1937), also known by its Irish-language, Irish name ( , ), was a State (polity), state established in December 1922 under the Anglo-Irish Treaty of December 1921. The treaty ended the three-ye ...
in 1922, all Acts of the
Oireachtas
The Oireachtas ( ; ), sometimes referred to as Oireachtas Éireann, is the Bicameralism, bicameral parliament of Republic of Ireland, Ireland. The Oireachtas consists of the president of Ireland and the two houses of the Oireachtas (): a house ...
were translated into Irish, initially using Dinneen's spellings, with a list of simplifications accumulating over the years.
When
Éamon de Valera
Éamon de Valera (; ; first registered as George de Valero; changed some time before 1901 to Edward de Valera; 14 October 1882 – 29 August 1975) was an American-born Irish statesman and political leader. He served as the 3rd President of Ire ...
became
President of the Executive Council after the
1932 election, policy reverted to older spellings, which were used in the enrolled text of the
1937 Constitution.
In 1941, de Valera decided to publish a "popular edition" of the Constitution with simplified spelling and established a committee of experts, which failed to agree on recommendations.
[Dáil debates Vol.99 No.17 p.3](_blank)
7 March 1946 Instead, the Oireachtas' own translation service prepared a booklet, , published in 1945.
Some pre-reform spellings criticised by
T. F. O'Rahilly and their modern forms include:
→ , → , → , → , → .
The booklet was expanded in 1947, and republished as "The Official
Standard" in 1958, combined with the standard grammar of 1953.
It attracted initial criticism as unhistorical and artificial; some spellings fail to represent the pronunciation of some dialects, while others preserve
letters unpronounced in any dialect.
Its status was reinforced by use in the
civil service
The civil service is a collective term for a sector of government composed mainly of career civil service personnel hired rather than elected, whose institutional tenure typically survives transitions of political leadership. A civil service offic ...
and as a guide for
Tomás de Bhaldraithe's 1959 English–Irish dictionary and
Niall Ó Dónaill's 1977 Irish–English dictionary.
A review of the written standard, including spelling, was announced in 2010, aiming to improve "simplicity, internal consistency, and logic". The result was the 2017 update of .
See also
*
Irish Braille
*
Irish manual alphabet
*
Scottish Gaelic orthography
Notes
* Vowels with an acute accent are read as
�/é/Ã/ó/ú "long
�/é/Ã/ó/ú.
* In the verbal adjective suffix, -- becomes after ( are deleted before it is added) and it becomes after which are deleted before it is added.
* After consonants, is silent, but devoices preceding voiced consonants. See
Irish phonology.
References
Bibliography
*
*
*
*
*
*
*
{{Language orthographies
Orthography
An orthography is a set of convention (norm), conventions for writing a language, including norms of spelling, punctuation, Word#Word boundaries, word boundaries, capitalization, hyphenation, and Emphasis (typography), emphasis.
Most national ...
Indo-European Latin-script orthographies