Where does “assure” come from?

Assure comes from Old French asseurer, formed from the Latin prefix ad- combined with a root ultimately derived from Proto-Indo-European swé, meaning self.

assure (English): To make sure and secure; ensure

Definitions

  1. To make sure and secure; ensure

Ancestry of “assure”, step by step

StepLanguageWordMeaning
1Old FrenchasseürerAlternative form of asseurer
2Vulgar Latin*assēcūrāre
3Latinad-to; usually prefixed to verbs, in which cases it...
4Latinīn-un-, non-, not
5Latinînin, at, on, upon, from (space)
6Latinenlookǃ beholdǃ; reallyǃ?; come onǃ
7Proto-Italicenin
8Proto-Indo-Europeanh₁énin

Words derived from “assure

Every word from Proto-Indo-European h₁én
assure — Etymology, Origin & Word History | Etymology Explorer