Variant of obsolete
- no longer in use or practice; discarded
- no longer in fashion; out-of-date; passé
- Biol. rudimentary or poorly developed as compared with its counterpart in other individuals of a related species, the opposite sex, etc.; vestigial: said of an organ, etc.
Origin: L obsoletus, past participle of obsolescere, to go out of use from ob- (see ob-) plush an unverified form -solescere (from exolescere, to grow out of use from ex-, ex- plush uncertain or unknown; perhaps alescere, to increase: see adolescent)
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