assumption.
The act of assuming, or taking to or upon oneself; the act of taking up or adopting.
Meaning & usage
The act of assuming, or taking to or upon oneself; the act of taking up or adopting.
His assumption of secretarial duties was timely.
The act of taking for granted, or supposing a thing without proof; a supposition; an unwarrantable claim.
Their assumption of his guilt disqualified them from jury duty.
The thing supposed; a postulate, or proposition assumed; a supposition.
The minor or second proposition in a categorical syllogism.
The taking of a person up into heaven.
A festival in honor of the ascent of the Virgin Mary into heaven, celebrated on 15 August.
Assumptio.
Where this word comes from
Etymology tree Proto-Indo-European *h₂éd Proto-Italic *ad Proto-Italic *ad- Latin ad- Proto-Indo-European *upó Proto-Italic *supo Latin sub Latin sub- Proto-Indo-European *h₁em- Proto-Indo-European *-eti Proto-Indo-European *h₁émeti Proto-Italic *emō Latin emō Latin sūmō Latin assūmō Proto-Indo-European *-tis Proto-Indo-European *-Hō Proto-Indo-European *-tiHō Proto-Italic *-tiō Latin -tiō Latin assūmptiōder. Middle English assumpciounder. English assumption From Middle English assumpcioun, from Medieval Latin assūmptiō (“a taking up (into heaven)”) and Latin assūmptiō (“a taking up, adoption, the minor proposition of a syllogism”) (whence -ion), from Latin assūmō (whence as- (“assimilated form of ad-”). See also assume. Doublet of assumptio.
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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.