Nysius
Could not find Nysium in Logeion dictionaries.
Nysium proper-name adjective neuter vocative singular, proper-name adjective masculine genitive plural, proper-name adjective neuter nominative singular, proper-name adjective neuter accusative singular, proper-name adjective masculine accusative singular, proper-name adjective neuter genitive plural of Nysius
Nysium neuter vocative singular, neuter accusative singular, neuter nominative singular, neuter genitive plural of nysion
Nȳsĭus, (16) a, um, de Nysa : Plin. 16, 147 || -ĭus, ĭī, m. , Bacchus : Cic. Fl. 60.