vaniloquentia
From LSJ
τοὐλεύθερον γὰρ ὄνομα παντὸς ἄξιον → the title ‘free' is worth everything
Latin > English (Lewis & Short)
vānĭlŏquentĭa: ae, f. vaniloquus,
I empty or idle talk, prating, vaunting (rarely; not in Cic.), Plaut. Rud. 4, 1, 14: hac vaniloquentiā primum Aristaenum praetorem Achaeorum excitavit, Liv. 34, 24, 1; Tac. A. 3, 49; 6, 31.—Plur., Jul. Val. Rer. Gest. Alex. 2, 10.
Latin > French (Gaffiot 2016)
vānĭlŏquentĭa,¹⁵ æ, f. (vaniloquus), paroles futiles, bavardage : Pl. Rud. 905 || jactance, fanfaronnades, vanteries : Liv. 34, 24, 1 || vanité [d’auteur] : Tac. Ann. 3, 49 ; 6, 31.