1526, "a tax of one-fifth," from M.Fr.
quint, from L.
quintus, ordinal to
quinque "five" (see
quinque-). First attested 1935 as a shortening of
quintuplet (Amer.Eng.; British preferred
quin); used originally of the Dionne quintuplets, born May 28, 1934, near Callander, Ontario, Canada.