ambidexter (Medieval Latin) comes from Latin ambi-, from Latin ambō, from Proto-Indo-European h₂m̥bʰi, from Proto-Indo-European h₂n̥tbʰi, from Proto-Indo-European h₂énts, from Proto-Indo-European h₂ent-, from Proto-Indo-European h₂en- — on, onto.
ambidexter (Medieval Latin): utilising both hands normally