Etymology Explorer › English

Where does “sly” come from?

Sly comes from Middle English sly, from Old Norse slœgr meaning clever or cunning, ultimately from Proto-Indo-European slak-.

sly (English): Artfully cunning; secretly mischievous; wily;...

Definitions

  1. Artfully cunning; secretly mischievous; wily;...

Ancestry of “sly”, step by step

StepLanguageWordMeaning
1Middle EnglishslyJudicious, considered, shrewd; having or...
2Old Norseslǿgr—
3Proto-Germanicslōgizable to strike; sly, cunning, clever
4Proto-Indo-Europeanslak-to hit; strike; to hit, strike, throw; to hit,...

Words derived from “sly”

  • slyboots
  • slyish
  • sliness
Every word from Proto-Indo-European slak- →