νηστευτέον
From LSJ
κορυδός ἐν ἀμούσοις φθέγγεται → a lark sings amid the songless | in the land of the blind, the one-eyed man is king | in the country of the blind, the one-eyed man is king | in the valley of the blind, the one-eyed man is king
Greek (Liddell-Scott)
νηστευτέον: δεῖ νηστεύειν, Κλήμ. Ρώμ. ἐν Mi. Pa. gr. τ. 1, σελ. 1013.