From Wiktionary, the free dictionary
vengier + -ance.
venjance oblique singular, f (oblique plural venjances, nominative singular venjance, nominative plural venjances)
- revenge; vengeance
c. 1150, Thomas d'Angleterre, Le Roman de Tristan, Champion Classiques edition, →ISBN, page 68, line 420:volt Tristran dunc quere venjance- Tristan wants therefore to seek vengeance