Supersede is a verb that means to replace or supplant something. It is derived from the Latin word 'supersedere, ' which means to go beyond or to take the place of something. The crossword solutions for the term supersede are REPLACES (8 letters) and GOEAST (6 letters). REPLACES is an appropriate solution because it implies that one thing is being replaced by another. GOEAST is also an appropriate solution because it implies that something is being replaced by something else that is further away or more advanced.