Etymology Explorer › English

Where does “ensure” come from?

Ensure comes from Old French enseurer, from Old French seur meaning secure, from Latin securus meaning free from care, derived from Latin suus meaning one's own, ultimately from Proto-Indo-European swé meaning self.

ensure (English): To make a pledge to ; to promise, guarantee ; to...

Definitions

  1. To make a pledge to ; to promise, guarantee ; to...

Ancestry of “ensure”, step by step

StepLanguageWordMeaning
1Middle Englishensuren—
2Anglo-Normanenseurer—

Words derived from “ensure”

  • ensurer
  • ensureth
  • ensurest
Every word from Anglo-Norman enseurer →