quint (n.) Look up quint at Dictionary.com
1520s, "a tax of one-fifth," from Middle French quint, from Latin quintus, ordinal to quinque "five" (see quinque-). First attested 1935 as a shortening of quintuplet (American English; British preferred quin); used originally of the Dionne quintuplets, born May 28, 1934, near Callander, Ontario, Canada.