iotacism means pronunciation of another vowel or diphthong as [i], or a vowel shift resulting in such pronunciation, especially in Greek. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
Why “iotacism” is a great word
IOTACISM — [Noun] The pronunciation of other vowels or diphthongs as the sound [i] (as in 'see'), a characteristic historical sound change in Greek, or the misspellings that result from it. From Late Latin iōtacismus, from Ancient Greek ἰωτακισμός (iōtakismós), from iōta (the Greek letter iota, representing the [i] sound) + -kismos (suffix forming nouns for phenomena). Unlike rhotacism, which concerns the trill or stumble of the 'r', or monophthongization, a broader term for any diphthong flattened to a single vowel, iotacism is a specific, relentless convergence upon that keen, high front note. It is the linguistic tide that smoothed the distinct vowels of ancient Greek into a uniform [i] sea, the scribal error where ει and ῃ and υ all collapse into ι, the gentle erosion that makes 'vineyard' and 'vintage' sound the same—the quiet victory of a single, clear pitch over the cumbersome grandeur of difference.
Etymology
From Ancient Greek ἰωτακισμός (iōtakismós), by surface analysis from iota + -cism (phenomenon related to a specific phoneme).
noun
- Pronunciation of another vowel or diphthong as [i], or a vowel shift resulting in such pronunciation, especially in Greek.
- A misspelling resulting from such pronunciation.