An example of vituperate is to gossip harshly behind someone's back.
Origin of vituperate; from Classical Latin vituperatus, past participle of vituperare, to blame ; from vitium, a fault, vice + parare, to prepare
verbvi·tu·per·at·ed, vi·tu·per·at·ing, vi·tu·per·ates
Origin of vituperateLatin vituperāre, vituperāt-.
(third-person singular simple present vituperates, present participle vituperating, simple past and past participle vituperated)
From Latin vituperÄtus, perfect passive participle of vituperÅ (“I blame, I censure"), from vitium (“fault, defect") + parÅ (“I furnish, I provide, I contrive").