suaviloquentia
From LSJ
διφθέραι σταδιαῖαι τοῖς μεγέθεσιν → hides a stade in size, hides fastened together so as to cover a place an entire stadium in extent
Latin > English (Lewis & Short)
suāvĭlŏquentĭa: ae, f. suaviloquens,
I sweetness of speech, suaviloquence: et oratorem appellat (Ennius Cethegum) et suaviloquentiam tribuit, Cic. Brut. 15, 58; cf. suaviloquens.
Latin > French (Gaffiot 2016)
suāvĭlŏquentĭa, æ, f. (suaviloquens), douceur de langage : Enn. d. Cic. Br. 58.