obligatory.
Imposing obligation, legally, morally, or otherwise; binding; mandatory.
Meaning & usage
Imposing obligation, legally, morally, or otherwise; binding; mandatory.
an obligatory promise
Requiring a matter or obligation.
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 ob- Proto-Indo-European *leyǵ-der. Latin ligō Latin obligō Proto-Indo-European *-tōr Proto-Italic *-tōr Latin -tor Proto-Indo-European *-(i)yós Proto-Italic *-ijos Proto-Italic *-ios Old Latin -ios Latin -ius Latin -tōrius Latin obligātōriusbor. Middle English obligatorie English obligatory From Middle English obligatorie, from Latin obligatōrius.
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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.