What is one who commits a trespass; as: (a) (Law) One who enters upon another's land, or violates his rights. (b) A transgressor of the moral law; an offender; a sinner called?

trespasser — One who commits a trespass; as: (a) (Law) One who enters upon another's land, or violates his rights. (b) A transgressor of the moral law; an offender; a sinner. (Webster's 1913.)

Sources