Merriam-Webster's Collegiate® Dictionary, 11th Edition
LACERATE
I. transitive verb (-ated; -ating)
Etymology: Middle English, from Latin laceratus, past participle of lacerare to tear; akin to Greek lakis tear
Date: 15th century
to tear or rend roughly ; wound jaggedly, to cause sharp mental or emotional pain to ; distress , lacerative adjective
II. adjective or lacerated
Date: 1542
1. torn jaggedly ; mangled, extremely harrowed or distracted, having the edges deeply and irregularly cut