ταξιαρχέω

τάξις

A. to be a taxiarch, command the contingent (τάξις) supplied by an Athenian φυλή, ταξιαρχῶν καὶ τὴν ἑαυτοῦ φυλὴν ἔχων Th. 8.92, cf. Ar. Pax 444, Lys. 13.7, D. 39.17, Arist. Pol. 1277b11, IG 22.956.49; ἐὰν ἡμῶν τις ‐αρχῇ ἢ λοχαγῇ σοι X. Mem. 3.1.5.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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