declaim

v. i. [ imp. & p. p. Declaimed p. pr. & vb. n. Declaiming. ] [ L. declamare; de- + clamare to cry out: cf. F. déclamer. See Claim. ] 1. To speak rhetorically; to make a formal speech or oration; to harangue; specifically, to recite a speech, poem, etc., in public as a rhetorical exercise; to practice public speaking; as, the students declaim twice a week. [ 1913 Webster ]

2. To speak for rhetorical display; to speak pompously, noisily, or theatrically; to make an empty speech; to rehearse trite arguments in debate; to rant. [ 1913 Webster ]

Grenville seized the opportunity to declaim on the repeal of the stamp act. Bancroft. [ 1913 Webster ]