Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Old French en-
Old English on- (cognate)
Latin in- (inherited)
Latin in (inherited)

English abate (mention)
English ambush (derived)
English en- (derived)
English en- (cognate)
English entail (mention)
English enact (derived)
English reimburse (mention)
English endow (derived)
English entreat (mention)
English indent (mention)
English improve (mention)
English engross (mention)
English ensorcell (mention)
English insure (mention)
English envelop (mention)
English encumber (mention)
English enamel (mention)
English encroach (derived)
English rampart (mention)
English enfranchise (mention)
English impoverish (mention)
English enfeoff (mention)
English enquire (mention)
English embattle (mention)
English embattle (prefix)
English emplead (link)
English indebt (mention)
English insense (mention)
Middle English envyned (prefix)
French en- (inherited)
French engager (mention)
French engloutir (affix)
French appauvrir (mention)
Old French ensevelir (affix)
Old French encoragier (affix)
Old French entor (mention)
Old French englotir (affix)
Old French encuser (mention)
Norman en- (inherited)
Norman rempart (mention)
Norman engagi (mention)