Silly means showing a lack of good sense, or being funny in a childish or playful way. It can be slightly negative or affectionately light-hearted, depending on the context.
“Silly” comes from Old English “sælig,” meaning happy, blessed, or fortunate. Over time, the meaning shifted from blessed to innocent, then to naive, and finally to foolish or playful. It’s a classic example of a word undergoing ‘semantic drift’ from positive to negative.
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