χιλιαρχία
From LSJ
ποταμῷ γὰρ οὐκ ἔστιν ἐμβῆναι δὶς τῷ αὐτῷ → it is impossible to step twice in the same river, you cannot step twice into the same rivers
English (LSJ)
ἡ,
A office or post of χιλίαρχος, X.Cyr.4.1.4. 2 office of tribunus militum Plu. Cam.38, al., D.C.59.29; ἀπὸ τριῶν χ., = Lat. tribus militiis, IGRom. 4.1204 (Thyatira). II unit under the command of a χιλίαρχος, corps of 1024 men, Ascl.Tact.2.10, Ael.Tact.9.6, Arr.Tact.10.5. 2 = χιλιάς, LXXNu.31.48, 1 Ma.5.13. 3 Persian military district, AJA 16.13 (Sardis, iv/iii B. C.). III = χιλιετηρίς, applied to work by Asinius Quadratus, St.Byz. s.v. Ὀξύβιοι (cf. χιλιάς 11).
German (Pape)
[Seite 1355] ἡ, das Amt od. die Würde des χιλιάρχης, Xen. Cyr. 4, 1,4.