scofflaw:  Aside from proprietary names and some scientific terms, it is rare for words that are pure human inventions (rather than naturally evolved forms) to make a permanent place for themselves in the English language, but scofflaw is a case in point. In the US in the early 1920s, in the middle of the Prohibition years, one Delcevare King of Quincy, Massachusetts offered a prize of $200 for a word to denote someone who defied the law and consumed alcohol.
Over 25,000 suggestions were received from America and around the world. In January 1924 King announced his chosen winner: scofflaw, a simple combination of scoff  (probably of Scandinavian origin) and law. Two people had submitted it (Henry Irving Dale and Kate L. Butler), and they shared the prize. Whether because or in spite of its homespun transparency, the word caught on, and survives in America to this day, albeit somewhat broadened out in meaning: specific reference to illicit drinkers is no longer in much demand, but it is now used for someone who flouts any law.
1924, from scoff (v.) + law (n.). The winning entry in a national contest during Prohibition to coin a word to characterize a person who drinks illegally, chosen from more than 25,000 entries; the $200 winning prize was split between two contestants who sent in the word separately: Henry Irving Dale and Miss Kate L. Butler. Other similar attempts did not stick, such as pitilacker (1926), winning entry in a contest by the Pennsylvania Society for the Prevention of Cruelty to Animals to establish a scolding word for one who mistreats animals (submitted by Mrs. M. McIlvaine Bready of Mickleton, N.J.).