linguistics Linguistics is the scientific study of language. The areas of linguistic analysis are syntax (rules governing the structure of sentences), semantics (meaning), Morphology (linguistics), morphology (structure of words), phonetics (speech sounds ...

, umlaut (from

German German(s) may refer to: * Germany, the country of the Germans and German things **Germania (Roman era) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizenship in Germany, see also Ge ...

"sound alternation") is a

sound change In historical linguistics, a sound change is a change in the pronunciation of a language. A sound change can involve the replacement of one speech sound (or, more generally, one phonetic feature value) by a different one (called phonetic chan ...

in which a

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 ...

is pronounced more like a following vowel or

semivowel In phonetics and phonology, a semivowel, glide or semiconsonant is a sound that is phonetically similar to a vowel sound but functions as the syllable boundary, rather than as the nucleus of a syllable. Examples of semivowels in English are ''y ...

. The term ''umlaut'' was originally coined by

Jacob Grimm Jacob Ludwig Karl Grimm (4 January 1785 – 20 September 1863), also known as Ludwig Karl, was a German author, linguist, philologist, jurist, and folklorist. He formulated Grimm's law of linguistics, and was the co-author of the ''Deutsch ...

in connection with the study of

Germanic languages The Germanic languages are a branch of the Indo-European languages, Indo-European language family spoken natively by a population of about 515 million people mainly in Europe, North America, Oceania, and Southern Africa. The most widely spoke ...

, as umlaut had occurred prominently in many of their linguistic histories (see

Germanic umlaut The Germanic umlaut (sometimes called i-umlaut or i-mutation) is a type of linguistic umlaut (linguistics), umlaut in which a back vowel changes to the associated front vowel (fronting (phonology), fronting) or a front vowel becomes closer to ...

). While the common English plural is umlauts, the German plural is Umlaute. Umlaut is a form of assimilation, the process of one speech sound becoming more similar to a nearby sound. Umlaut occurred in order to make words easier to pronounce. If a word has two vowels, one back in the mouth and the other forward, it takes more effort to pronounce than if those vowels were closer together. Thus, one way languages may change is that these two vowels get drawn closer together. The phenomenon is also known as

vowel harmony In phonology, vowel harmony is a phonological rule in which the vowels of a given domain – typically a phonological word – must share certain distinctive features (thus "in harmony"). Vowel harmony is typically long distance, meaning tha ...

, the complete or partial identity of vowels within a domain, typically a word. For example, in

Old High German Old High German (OHG; ) is the earliest stage of the German language, conventionally identified as the period from around 500/750 to 1050. Rather than representing a single supra-regional form of German, Old High German encompasses the numerous ...

, the word ''gast'' 'guest' had the plural form ''gesti'' 'guests': the plural ending ''-i'' caused the vowel in the stem to be a front vowel ''e''. This vowel alternation remained in the language, so that present-day

Standard German Standard High German (SHG), less precisely Standard German or High German (, , or, in Switzerland, ), is the umbrella term for the standard language, standardized varieties of the German language, which are used in formal contexts and for commun ...

displays the forms ''Gast''

ast AST, Ast, or ast may refer to: Science and technology * Attention schema theory, of consciousness or subjective awareness Computing * Abstract syntax tree, a finite, labeled, directed tree used in computer science * Anamorphic stretch transform, ...

– ''Gäste'' ɛstə although the final front vowel has been reduced to the central schwa vowel. The most commonly seen types of umlaut are the following: *Vowel raising, triggered by a following

high vowel A close vowel, also known as a high vowel (in U.S. terminology), is any in a class of vowel sounds used in many spoken languages. The defining characteristic of a close vowel is that the tongue is positioned approximately as close as possible to ...

(often specifically a high front vowel such as /i/). *Vowel fronting, triggered by a following

front vowel A front vowel is a class of vowel sounds used in some spoken languages, its defining characteristic being that the highest point of the tongue is positioned approximately as far forward as possible in the mouth without creating a constriction th ...

(often specifically a high front vowel such as /i/). *Vowel lowering, triggered by a following non-high vowel (often specifically a

low vowel An open vowel is a vowel sound in which the tongue is positioned approximately as far as possible from the roof of the mouth. Open vowels are sometimes also called low vowels (in U.S. terminology ) in reference to the low position of the tongue ...

such as /a/). *Vowel rounding, triggered by a following rounded vowel (often specifically a high rounded vowel such as /u/), as in Icelandic. All of these processes occurred in the history of the

; see

for more details. ''I-mutation'' is the most prominent of the processes, to the extent that it is often referred to simply as "umlaut". Similar processes also occurred in the history of the

Celtic languages The Celtic languages ( ) are a branch of the Indo-European language family, descended from the hypothetical Proto-Celtic language. The term "Celtic" was first used to describe this language group by Edward Lhuyd in 1707, following Paul-Yve ...

, especially

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 ...

. In this context, these processes are often referred to as ''

affection Affection or fondness is a "disposition or state of mind or body" commonly linked to a feeling or type of love. It has led to multiple branches in philosophy and psychology that discuss emotion, disease, influence, and state of being. Often, " ...

''. Vowel-raising umlaut occurred in the history of many of the

Romance languages The Romance languages, also known as the Latin or Neo-Latin languages, are the languages that are Language family, directly descended from Vulgar Latin. They are the only extant subgroup of the Italic languages, Italic branch of the Indo-E ...

, in the study of which it is normally termed ''

metaphony In historical linguistics, metaphony is a class of sound change in which one vowel in a word is influenced by another in a process of assimilation. The sound change is normally "long-distance" in that the vowel triggering the change may be se ...

''.

References

Assimilation (linguistics) German words and phrases {{phonology-stub

See also

References