Learn English – Etymology for the phrase, “on a lark.”

etymology

What is the etymology for the phrase, "on a lark" or "for a lark?"

Best Answer

Both Wiktionary and Etymonline say that the origin of lark in the meaning "frolic, prank" is not clear. Wiktionary puts it like this:

Origin uncertain, either

  • from (notably northern) English dialect lake/laik (“to play”) (c.1300, from Old Norse leika (“to play (as opposed to work)”)), with intrusive -r- common in southern British dialect; or
  • shortening of skylark (1809), sailors' slang, "play roughly in the rigging of a ship", because the common European larks were proverbial for high-flying; Dutch has a similar idea in speelvogel (“playbird, a person of markedly playful nature”).