Middle English (Scots) superceden to defer, from Middle French superceder, from Latin supersedēre to sit on top, refrain from, from super- + sedēre to sit
verb
to cause to be set aside
to force out of use as inferior
to take the place or position of
replacedisplacesupplantsupersede mean to put out of a usual or proper place or into the place of another. replace implies a filling of a place once occupied by something lost, destroyed, or no longer usable or adequate. displace implies an ousting or dislodging.