iotacism


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i·o·ta·cism

 (ī-ō′tə-sĭz′əm)
n.
In Greek, the pronunciation of certain letters, like eta and upsilon, as iota (ē) because of a regular sound change.

[Late Latin iōtacismus, from Greek iōtakismos, from iōta, iota; see iota.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

iotacism

(aɪˈəʊtəˌsɪzəm)
n
(Linguistics) a tendency of vowels and diphthongs, esp in Modern Greek, to acquire the pronunciation of the vowel iota (iː)
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

iotacism

excessive use of the sound i and the substituting of this sound for other vowels. — iotacist, n.
See also: Language
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.
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References in periodicals archive ?
Fresenius wrote of the constant iotacism in M: `In M.
178 W.), but [Tau][Upsilon][Chi][Eta] seems preferable, because -- with or without iotacism -- its confusion with [Unknown Words Omitted] is slightly easier.