ὀψων-έω · opsōn-eō — LSJ
buy fish and other dainties, ὀψωνεῖν ἔοιχʼ ἅνθρωπος ἐπὶ τυραννίδι Ar. V. 495: c. acc., τριχίδας ὀ. Eup. 154; καρκίνους Ar. V. 1506; ὑπογάστρια Antiph. 192.1, etc.: generally, buy victuals, cater, X. Mem. 3.14.1: prov., Δελφοῖσι θύσας αὐτὸς ὀψωνεῖ κρέας ap. Plu. QConv. 2.709a.