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US /ˈsɪl.i/
Freq #1249

Meanings

  1. 1
  2. 2
  3. 3

Thesaurus

Synonyms
2 adj · foolish enough to deserve... ridiculous
3 adj · dazed or confused, as if... punch-drunk
More charming
Opposites
Word family
Forms silliersilliessilliestsilliness
Derived forms nonsillysillificationsillilysillinesssilly-howsillycidalsillycidesillyficsillyheadsillyhoodsillyishsillyism

Appears in

Simplified etymology

Silly is a late Middle English alteration of seely, from an ancient root meaning “luck” or “happiness.” Old English seely meant “happy, fortunate, or blessed,” then developed through “holy” and “innocent or deserving of pity” before silly acquired its dominant sense “foolish” in the late 16th century.

Etymology

From Middle English seely, sēlī, from Old English sǣliġ, ġesǣliġ (“lucky, fortunate”), from Proto-West Germanic *sālīg, from *sāli; equivalent to seel (“happiness, bliss”) + -y. Doublet of Seelie. The semantic evolution is “lucky” to “innocent” to “naive” to “foolish”. Compare the similar evolution of daft (originally meaning “accommodating”), and almost the reverse with nice (originally meaning “ignorant”).

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