[f. AFFIRM + -ER1.] One who affirms: a. who confirms, or supports (obs.); b. who asserts or declares; c. who maintains what is disputed or denied, as opposed to the denier.
1540. Coverdale, Confut. Standish, Wks. II. 374. Ye report us to be the affirmers of your wicked words.
1611. Cotgr., Affirmateur, an affirmer, soother, avoucher.
1637. Gillespie, Eng. Pop. Cerem., II. vii. 29. His Majesties Auctority, did exeeme the affirmers from the paines of probation.
1860. Westm. Rev., No. 36, 419. But the proof lies with the affirmer.
1865. Reader, 30 Sept., 371/1. It is chiefly as an affirmer of positive doctrine that Plato has been influential.