The Collaborative International Dictionary of English v.0.48:
Cheerily \Cheer"i*ly\ (ch[=e]r"[i^]*l[y^]), adv. In a cheery manner. [1913 Webster]WordNet (r) 3.0 (2006):
cheerily adv 1: in a cheerful manner; "`I'll do the dishes,' he said pleasantly" [syn: pleasantly, cheerily, sunnily]