πολύχρηστος
From LSJ
ἥλιον ἐν λέσχῃ κατεδύσαμεν → we let the sun go down in talk, we let the sun go down in conversation
English (LSJ)
ον,
A useful for many purposes, very useful, Arist.GA789b9, Pol.1337b26, Dsc. 1.1, Gal.6.534,480 (Sup.); τὸ π. Corn.ND9: Comp., Muson.Fr. 20p.112H., Alex.Aphr. in Top.277.4. Adv. -τως v.l. in Paul.Aeg.7.16.