The Collaborative International Dictionary of English v.0.48:
Affirmatively \Af*firm"a*tive*ly\, adv. In an affirmative manner; on the affirmative side of a question; in the affirmative; -- opposed to negatively. [1913 Webster]WordNet (r) 3.0 (2006):
affirmatively adv 1: in an affirmative manner