Origin: 1300–50; perhaps conflation of Middle English repreven to reprove, apparently taken in literal sense “to test again” (involving postponement), and Middle English repried (past participle) < Old French reprit (see reprise)
1571, "take back to prison," from M.E. repryen "to remand, detain" (1494), probably from M.Fr. repris, pp. of reprendre "take back" (see reprise). Meaning "to suspend an impending execution" is recorded from 1596. Sense evolved because being sent back to prison was the alternative