(1):

(v. t.) To disavow or renounce all part, claim, or share.

(2):

(v. t.) To relinquish or deny having a claim; to disavow another's claim; to decline accepting, as an estate, interest, or office.

(3):

(v. t.) To renounce all claim to deny; ownership of, or responsibility for; to disown; to disavow; to reject.

(4):

(v. t.) To deny, as a claim; to refuse.