certain.
certain, guaranteed (sure, positive)
Meaning & usage
certain, guaranteed (sure, positive)
sûr et certain
une victoire certaine
certain (specified, particular)
certain (of indefinite, unknown or simply unmentioned identity, quality or quantity) (prepositive to the noun it modifies, and usually preceded by an indefinite article)
dans une certaine mesure
d'un certain âge
Where this word comes from
Etymology tree Proto-Indo-European *krey- Proto-Italic *kritos Latin certus Proto-Indo-European *-nós Proto-Italic *-nos Proto-Italic *-ānos Latin -ānus Latin *certānus Old French certain French certain Inherited from Old French certain, from Vulgar Latin unattested form *certānus, extended form of Latin certus (“fixed, resolved, certain”).
certain: a determined but unspecified amount of; some
Where this word comes from
Etymology tree Proto-Indo-European *krey- Proto-Italic *kritos Latin certus Proto-Indo-European *-nós Proto-Italic *-nos Proto-Italic *-ānos Latin -ānus Latin *certānus Old French certain French certain Inherited from Old French certain, from Vulgar Latin unattested form *certānus, extended form of Latin certus (“fixed, resolved, certain”).
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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.