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

to be or become obsolescent.

Origin of obsolesce

1870–75; < Latin obsolescere; see obsolete
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British Dictionary definitions for obsolesce



(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

Word Origin and History for obsolesce

1801, from Latin obsolescere "to grow old, wear out, lose value, become obsolete," inchoative of obsolere "fall into disuse" (see obsolete). Related: Obsolesced; obsolescing.

Online Etymology Dictionary, © 2010 Douglas Harper