The story
- Proto-Indo-European · derived from*wer-“to close, cover, protect, save, defend”
- Proto-Germanic · derived from*warjaną“to defend, protect”
- Frankish · derived from*warjan“to fend for, designate something as true, vouch for”
- Frankish · derived from*warand
- Old French · derived fromgarant
- Old French · derived fromgarantir
- Old French · derived fromguarantie
- English todayguaranty
From Old French guarantie, from Old French guarantie (“protection, defense”), from Old French garantir, guarantir (“to warrant, vouch for something”), from Old French garant, guarant, warant (“a warrant; warranter, supporter, defender, protector”), from Frankish *warand, *warjand (“a warrant”), from Frankish *warjan (“to fend for, designate something as true, vouch for”), from Proto-Germanic *warjaną (“to defend, protect”), from Proto-Indo-European *wer- (“to close, cover, protect, save, defend”). Cognate with Middle Low German warent, warend (“a warrant”), German gewähren (“to grant”). More at warrant. Doublet of guarantee and warranty.
Words from the same roots
Frankish*warand all →
Frankish*warjan all →
Proto-Germanic*warjaną all →
Proto-Indo-European*wer- all →
Etymology from Wiktionary, CC BY-SA 4.0.