μέλπειν

From LSJ

Οὐ λύσῃς, ὦ ξένε, τόν ἐν τῆ οἰκία φίλον; (Ου λύσης, ω ξένε, τον εν τη οικία φίλον) → Won't you release the friend?

Source

Greek > English (Woodhouse Verbs Reversed)

(see also μέλπω): sing, celebrate in song