Main Entry: su·per·sede

Pronunciation: \ˌsü-pər-ˈsēd\

Function: transitive verb

Inflected Form(s): su·per·sed·ed; su·per·sed·ing

Etymology: Middle English (Scots) superceden to defer, from Middle French, from Latin supersedēre to sit on top, refrain from, from super- + sedēre to sit — more at sit

Date: 1654

1 a : to cause to be set aside b : to force out of use as inferior
2 : to take the place or position of
3 : to displace in favor of another

synonyms see replace

— su·per·sed·er noun