c.1360, from O.Fr.
execution, from L.
executionem agent noun from
exequi "follow out," from
ex- "out" +
sequi "follow" (see
sequel). Sense of "act of putting to death" is from M.E. legal phrases such as
don execution of deth "carry out a sentence of death." Literal meaning "action of carrying something into effect" is from c.1374. John McKay, coach of the woeful Tampa Bay Buccaneers (U.S. football team), when asked by a reporter what he thought of his team's execution, replied, "I think it would be a good idea."
Executor and
executioner were formerly used indifferently, since both are carrying out legal orders; the latter in the sense of "headsman" is from 1561.