Probus

Prŏbus, i, m.,

a Roman surname , Suet. Gram. 24.— Prŏbĭānus , a, um, adj., of or named from a Probus: purpura, Lampr. Alex. Sev. 40.

probus
probus adj. with comp, estimable, good, serviceable, excellent, superior, upright, hones...

An Elementary Latin Dictionary
probus
prŏbus, a, um, adj. [Sanscr. prabhus, prominent, strong, from pra (v. pro) and bhu = fio], I good , ...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.