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Iotacism ( el, ιωτακισμός, ''iotakismos'') or itacism is the process of vowel shift by which a number of
vowel A vowel is a syllabic speech sound pronounced without any stricture in the vocal tract. Vowels are one of the two principal classes of speech sounds, the other being the consonant. Vowels vary in quality, in loudness and also in quantity (leng ...
s and diphthongs converged towards the pronunciation in
post-classical In world history, post-classical history refers to the period from about 500 AD to 1500, roughly corresponding to the European Middle Ages. The period is characterized by the expansion of civilizations geographically and development of trade ...
Greek and
Modern Greek Modern Greek (, , or , ''Kiní Neoellinikí Glóssa''), generally referred to by speakers simply as Greek (, ), refers collectively to the dialects of the Greek language spoken in the modern era, including the official standardized form of the ...
. The term "iotacism" refers to the letter
iota Iota (; uppercase: Ι, lowercase: ι; ) is the ninth letter of the Greek alphabet. It was derived from the Phoenician letter Yodh. Letters that arose from this letter include the Latin I and J, the Cyrillic І (І, і), Yi (Ї, ї), and ...
, the original sign for , with which these vowels came to merge. The alternative term ''itacism'' refers to the new pronunciation of the name of the letter eta as after the change.


Vowels and diphthongs involved

Ancient Greek had a broader range of vowels (see Ancient Greek phonology) than Modern Greek has. Eta () was a long
open-mid front unrounded vowel The open-mid front unrounded vowel, or low-mid front unrounded vowel, is a type of vowel sound used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is a Latinised variant of the Greek lower ...
, and
upsilon Upsilon (, ; uppercase Υ, lowercase υ; el, ''ýpsilon'' ) or ypsilon is the 20th letter of the Greek alphabet. In the system of Greek numerals, grc, Υʹ, label=none has a value of 400. It is derived from the Phoenician waw . E ...
() was a
close front rounded vowel The close front rounded vowel, or high front rounded vowel, is a type of vowel sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is /y/, and the equivalent X-SAMPA symbol is y. Ac ...
. Over the course of time, both vowels came to be pronounced like the
close front unrounded vowel The close front unrounded vowel, or high front unrounded vowel, is a type of vowel sound that occurs in most spoken languages, represented in the International Phonetic Alphabet by the symbol i. It is similar to the vowel sound in the English wo ...
iota Iota (; uppercase: Ι, lowercase: ι; ) is the ninth letter of the Greek alphabet. It was derived from the Phoenician letter Yodh. Letters that arose from this letter include the Latin I and J, the Cyrillic І (І, і), Yi (Ї, ї), and ...
() . In addition, certain
diphthongs A diphthong ( ; , ), also known as a gliding vowel, 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 the speech ...
merged to the same pronunciation. Specifically, Epsilon-iota () initially became in Classical Greek before it later raised to () while, later, omicron-iota () and upsilon-iota () merged with upsilon (). As a result of eta and upsilon being affected by iotacism, so were the respective diphthongs. In
Modern Greek Modern Greek (, , or , ''Kiní Neoellinikí Glóssa''), generally referred to by speakers simply as Greek (, ), refers collectively to the dialects of the Greek language spoken in the modern era, including the official standardized form of the ...
, the letters and digraphs (rare) are all pronounced .


Issues in textual criticism

Iotacism caused some words with originally distinct pronunciations to be pronounced similarly, sometimes the cause of differences between manuscript readings in the
New Testament The New Testament grc, Ἡ Καινὴ Διαθήκη, transl. ; la, Novum Testamentum. (NT) is the second division of the Christian biblical canon. It discusses the teachings and person of Jesus, as well as events in first-century Chri ...
. For example, the upsilon of ''hymeis, hymōn'' "ye, your" ( second person
plural The plural (sometimes abbreviated pl., pl, or ), in many languages, is one of the values of the grammatical category of number. The plural of a noun typically denotes a quantity greater than the default quantity represented by that noun. This de ...
in respectively nominative, genitive) and the eta of {{lang, grc, ἡμεῖς, ἡμῶν ''hēmeis, hēmōn'' "we, our" (first person plural in respectively nominative, genitive) could be easily confused if a lector were reading to copyists in a
scriptorium Scriptorium (), literally "a place for writing", is commonly used to refer to a room in medieval European monasteries devoted to the writing, copying and illuminating of manuscripts commonly handled by monastic scribes. However, lay scribes an ...
. (In fact, Modern Greek had to develop a new second-person plural, εσείς, while the first-person plural's eta was opened to epsilon, εμείς, as a result of apparent attempts to prevent it sounding like the old second-person plural.) As an example of a relatively minor (almost insignificant) source of variant readings, some ancient
manuscript A manuscript (abbreviated MS for singular and MSS for plural) was, traditionally, any document written by hand – or, once practical typewriters became available, typewritten – as opposed to mechanically printed or reproduced in ...
s spelled words the way they sounded, such as the 4th-century
Codex Sinaiticus The Codex Sinaiticus ( Shelfmark: London, British Library, Add MS 43725), designated by siglum [Aleph] or 01 (in the Gregory-Aland numbering of New Testament manuscripts), δ 2 (in the von Soden numbering of New Testament manuscript ...
, which sometimes substitutes a plain iota for the epsilon-iota digraph and sometimes does the reverse. English-speaking textual critics use the word "itacism" to refer to the phenomenon and extend it loosely for all inconsistencies of spelling involving vowels.Greenlee, J. Harold (1964). ''Introduction to New Testament Textual Criticism'', Eerdmans, p. 64.


See also

*
Greek language Greek ( el, label= Modern Greek, Ελληνικά, Elliniká, ; grc, Ἑλληνική, Hellēnikḗ) is an independent branch of the Indo-European family of languages, native to Greece, Cyprus, southern Italy ( Calabria and Salento), southe ...
*
Greek alphabet The Greek alphabet has been used to write the Greek language since the late 9th or early 8th century BCE. It is derived from the earlier Phoenician alphabet, and was the earliest known alphabetic script to have distinct letters for vowels as w ...
* Ancient Greek phonology * Koine Greek phonology *
Medieval Greek Medieval Greek (also known as Middle Greek, Byzantine Greek, or Romaic) is the stage of the Greek language between the end of classical antiquity in the 5th–6th centuries and the end of the Middle Ages, conventionally dated to the Fall of Co ...
* Modern Greek phonology * Vowel shift * Minuscule 541 and Minuscule 543 – manuscripts with an unusual number of itacistic errors


References

Greek language Koine Greek Vowel shifts