[Meaning something] good, advantageous, or suitable;[1] because "[good] defrays what is expended on it, so that the return from the transaction creates s surplus in benefit."[2]
And Diodorus the Sicilian says: "Tryphon [...] prepared a golden Victory and despatched it to Rome; for he supposed that the Romans would accept the Victory because of its being, at one and the same time, profitable and good-omened."[3]