trespass quare clausum fregit

from WordNet (r) 3.0 (2006)

trespass quare clausum fregit
    n 1: the defendant unlawfully enters the land of the plaintiff

from Bouvier's Law Dictionary, Revised 6th Ed (1856)

TRESPASS QUARE CLAUSUM FREGIT, practice. This is the name of a remedy which 
lies to recover damages when the defendant has unlawfully and wrongfully 
trespassed upon the real estate of the plaintiff. 
     2. This action must be brought by the tenant in possession, for the 
injury is done to his possession. A remainder-man or reversioner cannot 
sustain it. 3. As the injury must be committed to the possession, one who 
has a mere incorporeal right cannot maintain this action. 4 Bouv. Inst. n. 
3600.