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“iotacism”
1. The tendency in speakers of modern Greek to use the sound of iota in place of the sound of other vowel characters; such as, "eta" or "upsilon".
2. The practice in modern Greek of giving the pronunciation of iota "ee" to certain diphthongs and long vowels.
2. The practice in modern Greek of giving the pronunciation of iota "ee" to certain diphthongs and long vowels.