ἀρχε-
From LSJ
ἄλογον δὴ τὸ μήτε μάχης ἄρξασθαι μήτε τοὺς φίλους φυλάξαι, ἐὰν ὑπό γε τῶν βαρβάρων ἀδικῆσθε → It is irrational neither to begin battle nor to guard the friends, if you are ever wronged by the foreigners
English (LSJ)
insep. Prefix (from ἄρχω),
A = ἀρχι-, with which it is sometimes interchanged, cf. ἀρχιθέωρος, etc.
