ընկերութիւն (Old Armenian) comes from Old Armenian ընկեր, from Old Armenian ընդ, from Proto-Indo-European h₂énti, from Proto-Indo-European h₂énts, from Proto-Indo-European h₂ent-, from Proto-Indo-European h₂en- — on, onto.
ընկերութիւն (Old Armenian): company, companionship, fellowship, society