(1):
(v. t.) To hinder; to destroy; as, to infringe efficacy; to infringe delight or power.
(2):
(v. t.) To break; to violate; to transgress; to neglect to fulfill or obey; as, to infringe a law or contract.
(3):
(v. i.) To break, violate, or transgress some contract, rule, or law; to injure; to offend.
(4):
(v. i.) To encroach; to trespass; - followed by on or upon; as, to infringe upon the rights of another.