noting a change in part of the sound of a word made independently of the phonetic environment of that part.
Origin of isolative
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
(of a sound change) occurring in all linguistic environments, as the change of Middle English / iː / to Modern English / aɪ /, as in timeCompare combinative (def. 2)
of, relating to, or concerned with isolation
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012