- assure
[assure 词源字典]
- assure: see insure
[assure etymology, assure origin, 英语词源] - assure (v.)
- late 14c., from Old French asseurer (12c., Modern French assurer) "to reassure, calm, protect, to render sure," from Vulgar Latin *assecurar, from Latin ad- "to" (see ad-) + securus "safe, secure" (see secure (adj.)). Related: Assured; assuring.