perdisertus

per-dĭsertus, a, um, adj.,

• very eloquent (late Lat. and rare), Gram. Vat. Praep. 5 (Class. Auct. vol. 5 Mai).
• —Hence, per-dĭsertē, adv., very eloquently, Cic. de Or. 1, 14, 62.

per-disertus, a, um, sehr beredt, Gramm. Vatic. de praepos. § 5 (Class. auct. 5, 275, a).