days permitted by custom for payment of a promissory note, bill of exchange, etc, after it falls due
days of grace in American English
UNRESOLVED CROSS REF
days of grace in American English
plural noun
days, usually three, allowed by law or custom for payment after a bill or note falls due
Word origin
[1840–50; trans. of L diēs grātiae]This word is first recorded in the period 1840–50. Other words that entered Englishat around the same time include: flan, plaque, sensationalism, set piece, warmup