obsolescence.
The state of being obsolete—no longer in use; gone into disuse; disused or neglected.
Meaning & usage
The state of being obsolete—no longer in use; gone into disuse; disused or neglected.
The process of becoming obsolete, outmoded or out of date.
Where this word comes from
Etymology tree Proto-Indo-European *h₁ep-der. Proto-Indo-European *h₁épsder. Proto-Indo-European *h₁óp(i) Proto-Italic *op Latin ob Latin obs- Proto-Indo-European *h₂el- Proto-Indo-European *-yeti Proto-Indo-European *-éyeti Proto-Indo-European *h₂oléyeti Proto-Italic *oleō Latin *oleō Proto-Indo-European *-sḱéti Proto-Italic *-skō Latin -sco Latin olēscere Latin obsolēscere Proto-Indo-European *-onts Latin -ns Latin -ēns Latin obsolēscēnsbor. English obsolescence From Latin obsolēscēns (present participle of obsolēscere).
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.