The Collaborative International Dictionary of English v.0.48:
ill-use \ill-use\ v. 1. to treat badly. Syn: mistreat, maltreat, abuse, ill-treat. [WordNet 1.5]WordNet (r) 3.0 (2006):
ill-use v 1: treat badly; "This boss abuses his workers"; "She is always stepping on others to get ahead" [syn: mistreat, maltreat, abuse, ill-use, step, ill-treat]