οἴσομαι

From LSJ

ἢ λέγε τι σιγῆς κρεῖττον ἢ σιγὴν ἔχε → either say something better than silence or keep silence (Menander)

Source

French (Bailly abrégé)

f. Moy. de φέρω.

Russian (Dvoretsky)

οἴσομαι: fut. med. к φέρω.