νᾶφε καὶ μέμνασο ἀπιστεῖν → keep a clear head and remember not to believe a thing (Epicharmus fr. 250)
gibba: ae, v. 1. gibbus, II. B.
gibba,¹⁶ æ, f. (gibbus), bosse, gibbosité : Suet. Dom. 23.