Where does “enrager” come from?

enrager (French) comes from French rage, from Middle French rage, from Old French rage, from Latin rabia, from Latin rabiēs, from Latin rabiō, from Proto-Indo-European rebʰ-, from Proto-Indo-European lebʰ- — youngling, nestling, child; to work, harvest,...

enrager (French): to have rabies; to enrage, anger, infuriate; to...