Iotacism

From Textus Receptus

Iotacism (ἰωτακισμός, 'iotakismos') is the process by which a number of vowels and diphthongs in Ancient Greek converged in pronunciation so that they all sound like iota ([i]) in Modern Greek. In the case of the letter eta specifically, this process is known as itacism (from the resulting pronunciation of the letter's name as [ˈita]).

Vowels and diphthongs involved

Ancient Greek had a broader range of vowels (see Ancient Greek phonology) than Modern Greek. Eta (η) was a long open-mid front unrounded vowel /ɛː/, and upsilon (υ) was a close front rounded vowel /y/. Over the course of time, both of these vowels came to be pronounced like the close front unrounded vowel iota (ι) [i]. In addition, certain diphthongs merged to the same pronunciation, especially epsilon-iota (ει) and (later) upsilon-iota (υι).

In Modern Greek the letters and digraphs "ι", "η", "υ", "ει", "οι", "ηι", "υι" are all pronounced "i", [i].

Issues in textual criticism

Due to iotacism, some words with originally distinct pronunciations are now pronounced similarly, and this is sometimes the cause of differences between manuscript readings in the New Testament. For example, the upsilon of ὑμεῖς, ὑμῶν hymeis, hymōn "you, your" (2nd person pl. in respectively NOM, GEN) and the eta of ἡμεῖς, ἡμῶν hēmeis, hēmōn "we, our" (1st person pl. in respectively NOM, GEN) could be easily confused if a lector were reading to copyists in a scriptorium. As an example of a relatively minor (almost insignificant) source of "variant readings", some ancient manuscripts spelled words the way they sounded, such as the 4th-century Codex Sinaiticus, which sometimes substitutes a plain iota for the epsilon-iota digraph and sometimes does the reverse.^[1]

English-speaking textual critics use the word "itacism" to refer to this phenomenon, and loosely for all inconsistencies of spelling involving vowels.^[2] The word itacism comes from ita, the pronunciation of the name of the letter η (eta) with iotacism.

References

1. Jongkind, Dirk (2007). Scribal Habits of Codex Sinaiticus, Gorgias Press LLC, p. 74 ff, 93-94.
2. Greenlee, J. Harold (1964). Introduction to New Testament Textual Criticism, Eerdmans, p. 64.

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