PJ Deut27:17 :ליט דישני תחומא דחבריה‏ : cursed be one who changes his neighbor’s boundary
See the entire entry for šny vb. to be different

PJ Deut27:17 :ליט דישני תחומא דחבריה‏ :
See the entire entry for tḥūm, tḥūmā n.m. border; territory; definition