-ˌsizəm noun
( -s )
Etymology: Late Latin iotacismus, from Greek iōtakismos, from iōta iota
: excessive use of the letter iota or I or a too frequent repetition of its sound ; specifically : the use in modern Greek of the sound of iota (Eng. ē in bē ) in speaking words written with other vowels or diphthongs (as ē, y, ei, oi ) — compare itacism