ἀρχι- Save LSJ Abbott-Smith NT ἀρχῐ-, insep. Prefix, like ἀρχε-, from the same Root as ἄρχω, ἀρχός. ἀρχι- (ἄρχω), insep. prefix, denoting high office and dignity, freq. in Alex. and Byzant. Gk. (MM, s.v.).