su·per·sede [ spər sd ](past and past participlesu·per·sed·ed, present participlesu·per·sed·ing, 3rd person present singularsu·per·sedes)
transitive verb
Definition:
1. replace something less efficient: to take the place or position of something that is less efficient, less modern, or less appropriate, or cause something to do this
2. succeed somebody or something: to succeed somebody or something in a role, office, or function
(
formal
)
[15th century. Via French< Latin supersedere "be superior to" < super "over, above" + sedere "sit"]
su·per·sed·a·ble adjective
su·per·sed·ence noun
su·per·sed·er noun
Word Usage
Note that supersede is correctly spelled -sede and not -cede.