The Collaborative International Dictionary of English v.0.48:
Selfishly \Self"ish*ly\, adv. In a selfish manner; with regard to private interest only or chiefly. [1913 Webster]WordNet (r) 3.0 (2006):
selfishly adv 1: in an egotistical manner; "he behaved egotistically" [syn: egotistically, selfishly] [ant: unselfishly]