"[To march up to] and to march by are different. For everyone 'marches up to [sc. the enemy]' when drawn up in such a way as to make them best for fighting; but those who are sensible 'march by' with a view to retreating in the safest possible way, not the swiftest. A necessity for passing by [sc. safely] is that the wagons be spread out and that the rest of the baggage-train, too, be for the most part extended." So says Xenophon.[1]
Also [sc. attested is] prosa/gein standing for to befriend, to win over.[2]
"He made it known through the envoys that he would approach the peoples with money and gifts, but would announce that the profits from the war be shared".[2]