Latin word abstineo comes from Latin tentare, Latin ab-

Detailed word origin of abstineo

Dictionary entry	Language	Definition
tentare	Latin (lat)
ab-	Latin (lat)	Absence of. At a distance. Completely, thoroughly. From, away, away from. More remote. Off.
abstineo	Latin (lat)	(with non) I allow (Example: Se ita dicere non abstinuit. "He allowed himself to speak so/in that way."). I abstain.. I keep, stay off or away, hold at a distance, avoid.