Where does “avenge” come from?

Avenge comes from Middle English avengen, from Old French avengier, composed of the Old French prefix a- (from Latin ad-) and Old French vengier, ultimately deriving from Latin roots meaning "to punish or take vengeance."

avenge (English): To take vengeance (for); to exact satisfaction for by punishing the injuring party; to vindicate by inflicting pain or evil on a wrongdoer

Definitions

To take vengeance (for); to exact satisfaction for by punishing the injuring party; to vindicate by inflicting pain or evil on a wrongdoer

Ancestry of “avenge”, step by step

Step	Language	Word	Meaning
1	Middle English	avengen	—
2	Old French	avengier	to avenge
3	Old French	vengier	to avenge, to take revenge
4	Latin	vindicō	to lay claim to as one's own (often with sibi)
5	Latin	vindex	claimant, vindicator
6	Latin	dīcō	to say, talk, speak, utter, mention
7	Latin	-tiō	tion, -ation, -ing
8	Latin	dissertātiō	(spoken) dissertation, discourse, disquisition
9	Latin	dissertus	arranged, disposed; explained
10	Latin	disserere	second-person singular future passive indicative...
11	Latin	dis-	asunder, apart, in two; reversal, removal;...
12	Latin	calceus	shoe
13	Latin	calx	limestone; chalk; the finish line
14	Ancient Greek	χάλιξ	small stone, pebble; gravel, rubble

Words derived from “avenge”

Every word from Ancient Greek χάλιξ →Every word from Latin -tiō →Every word from Latin dis- →