obsolesce

[ ob-suh-les ]
/ ˌɒb səˈlɛs /

verb (used without object), ob·so·lesced, ob·so·lesc·ing.

to be or become obsolescent.

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Origin of obsolesce

1870–75; < Latin obsolescere; see obsolete
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for obsolescing

obsolesce
/ (ˌɒbsəˈlɛs) /

verb

(intr) to become obsolete
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