guarantee

The story

1. Frankish · derived from*warjand
2. Spanish · derived fromgarante
3. Old French · derived fromguarantie
4. English todayguarantee

From Old French guarantie (perhaps via a later Spanish garante), from the verb guarantir (“to protect, assure, vouch for”), ultimately from Old Frankish *warjand, *warand (“a warrant”), or from guaranty. Doublet of guaranty and warranty.

Words from the same roots