Merriam-Webster's Collegiate® Dictionary, 11th Edition
RANT
I. verb
Etymology: obsolete Dutch ranten, randen
Date: 1601
intransitive verb to talk in a noisy, excited, or declamatory manner, to scold vehemently, transitive verb to utter in a bombastic declamatory fashion, ranter noun rantingly adverb
II. noun
Date: 1649
1. a bombastic extravagant speech, bombastic extravagant language, a rousing good time