What is the origin of the word corpse?

Origin:

1225-75; Middle English corps; orig. spelling variant of cors corse but the p is now sounded

corpse

1540s, variant spelling of corps (q.v.). The -p- was originally silent, as in French, and with some speakersstill is. The terminal -e was rare before 19c. Corpse-candle is attested from 1690s.

[C14: from Old French corps body, from Latin corpus body]