to replace in power, authority, effectiveness, acceptance, use, etc., as by another person or thing.
2.
to set aside or cause to be set aside as void, useless, or obsolete, usually in favor of something mentioned; make obsolete: They superseded the old statute with a new one.
3.
to succeed to the position, function, office, etc., of; supplant.
Origin: 1485–95; < Latin supersedēre to sit above or upon, forbear, equivalent to super-super- + sedēre to sit1
mid-15c., Scottish, "postpone, defer," from M.Fr. superceder "desist, delay, defer," from L. supersedere "sit on top of, stay clear of, abstain from, forbear, refrain from," from super "above" (see super-) + sedere "to sit" (see sedentary).