D defs.my
Entry 2 senses Webster, 1913

Affirmant

/(ăf*fẽrm"ant)/ · Af·firm·ant · IPA
01 n. One who affirms or asserts.
  1. 1.
    One who affirms or asserts.
  2. 2.
    One who affirms, instead of taking an oath.(Law)