(1):

(v. t.) To make void, inefficacious, or useless, by superior power, or by coming in the place of; to set aside; to render unnecessary; to suspend; to stay.

(2):

(v. t.) To displace, or set aside, and put another in place of; as, to supersede an officer.

(3):

(v. t.) To come, or be placed, in the room of; to replace.

(4):

(v. t.) To omit; to forbear.