The verb means, originally, to unloose: so of vessels, to unloose their moorings and go to sea. Of departing generally. This is its sense in the only other passage where it occurs, Phi 1:23, “having a desire to depart, or break up; the metaphor being drawn from breaking up an encampment.” Compare departure (ἀναλύσεως), 2Ti 4:6. The rendering return is a kind of inference from this: when he shall leave the wedding and return.