I. ˌäb-sə-ˈlēt, ˈäb-sə-ˌ adjective
Etymology: Latin obsoletus, from past participle of obsolescere to grow old, become disused, perhaps from ob- toward + solēre to be accustomed
Date: 1579
1.
a. : no longer in use or no longer useful
an obsolete word
b. : of a kind or style no longer current : old-fashioned
an obsolete technology
2. of a plant or animal part : indistinct or imperfect as compared with a corresponding part in related organisms : vestigial
Synonyms: see old
• ob·so·lete·ly adverb
• ob·so·lete·ness noun
II. transitive verb
( -let·ed ; -let·ing )
Date: 1640
: to make obsolete