θοινᾶν

From LSJ

οὐ λήψει τὸ ὄνομα Κυρίου τοῦ Θεοῦ σου ἐπὶ ματαίω → thou shalt not take the name of the Lord thy God in vain

Source

Greek > English (Woodhouse Verbs Reversed)

feast (see also: θοινάζω, θοινῶ)