μοιμυάω
From LSJ
καὶ κεραμεὺς κεραμεῖ κοτέει καὶ τέκτονι τέκτων, καὶ πτωχὸς πτωχῷ φθονέει καὶ ἀοιδὸς ἀοιδῷ → and potter is ill-disposed to potter, and carpenter to carpenter, and the beggar is envious of the beggar, the singer of the singer
English (LSJ)
A compress the lips or make grimaces in sign of displeasure, Hsch., Phot., v.l. for μοιμυλλᾶν in Poll.2.90; hence restored for τί μοι μυᾶτε; in Ar.Lys.126.