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Designating those Indo-European languages, including the Indo-Iranian, Armenian, and Balto-Slavic branches, in which original palatal velar stops became fricatives (as k' > s or š) and labiovelar stops became plain velars (as kw > k).
[Avestan satəm, hundred (a word whose initial sound illustrates the change); see dekm̥ in Indo-European roots.]
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.
(Languages) denoting or belonging to the group of Indo-European languages in which original velar stops became palatalized (k > s or /ʃ/). These languages belong to the Indic, Iranian, Armenian, Slavonic, Baltic, and Albanian branches and are traditionally regarded as the E group. Compare centum
[from Avestan satəm hundred; chosen to exemplify the variation of initial s with initial k (as in centum) in Indo-European languages]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
of or designating the group of Indo-European languages in which Proto-Indo-European palatal stops developed into alveolar or palatal fricatives. Compare centum.
[1900–05; < Avestan satəm hundred (c. Latin centum)]
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