Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • intransitive verb To undergo the process of becoming obsolete.

from The Century Dictionary.

  • To become obsolescent; fall into disuse.

from the GNU version of the Collaborative International Dictionary of English.

  • intransitive verb rare To become obsolescent.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • verb To become obsolete.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • verb become obsolete, fall into disuse

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[Latin obsolēscere; see obsolescent.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Latin obsolescere ("to wear out, fall into disuse, grow old, decay"), inceptive of obsolere ("to wear out, decay") (rare), apparently from ob ("before") + solere ("to be wont"); or else from obs-, a form of ob- + olere ("to grow") (compare adolescent).

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