adjectivegrăvĭsŏnusGRAVISONVS☆ KeepMeaninghaving a deepLewis & Short 1879ModernAs printed, 1879GRAVISONUSLEWIS & SHORTGRAVISONUSgrăvĭsŏnus, a, um, adj. gravis-sonus, I. having a deep or heavy sound, as defin. of sonorus, Serv. Verg. A. 1, 53.Read the whole entry