WordofTheDay.US

slang

/ˈslæŋ/ noun

Origin

First use appears c. 1756, meaning "special vocabulary of tramps or thieves", origin unknown. Not believed to be connected with language or lingo. Possibly derived from a North Germanic source, then possibly related to Nordic language: Danish slænge, Icelandic and Norwegian Nynorsk slengja, Norwegian slenge, Swedish slänga (“to (carelessly) sling, throw, hurl; throw away, to dispose of; to flail”), with derivational nouns such as slæng, sleng, släng etc.

From Wiktionary, via Kaikki.org (CC BY-SA)