discretion Look up discretion at Dictionary.com
c.1300, from L.L. discretionem (nom. discretio) "discernment, power to make distinctions," from L. discretionem "separation, distinction," from discre- stem of discernere "to separate, distinguish" (see discern). Phrase at (one's) discretion attested from 1577; the age of discretion (1395) in English law was 14.