Middle English word abhorren comes from Latin horrere, Latin ab-, and later Middle French abhorrer (To abhor.)

Detailed word origin of abhorren

Dictionary entry	Language	Definition
horrere	Latin (lat)
ab-	Latin (lat)	Absence of. At a distance. Completely, thoroughly. From, away, away from. More remote. Off.
abhorrere	Latin (lat)
abhorrer	Middle French (frm)	To abhor.
abhorren	Middle English (enm)

Words with the same origin as abhorren