vanitudo
From LSJ
νόσημα γὰρ αἴσχιστον εἶναί φημι συνθέτους λόγους → for I consider false words to be the foulest sickness
Latin > English (Lewis & Short)
vānĭtūdo: ĭnis, f. id.,
I emptiness, nothingness, vainglory, vanity (ante-class.): ne turpasse vanitudine aetatem suam, Pac. ap. Non. 184, 7: vera vanitudine convincere, by empty, lying talk, Plaut. Capt. 3, 4, 37.
Latin > French (Gaffiot 2016)
vānĭtūdō,¹⁶ ĭnis, f. (vanus), mensonge : Pl. Capt. 569 || vanité : Pacuv. 123.
Latin > German (Georges)
vānitūdo, inis, f. (vanus), die Nichtigkeit, das lügnerische Gerede, Pacuv. tr. 123. Plaut. capt. 569.