When:
Lookups spiked on February 1, 2011.
Why:
News reports about "inclement weather" heralded a major snowstorm in the midwest and northeast of the U.S.
Inclement means "stormy." Its Latin root clemens means "mild" or "calm" - so inclement is the opposite of that.
(The related word clemency means "mercy" or "compassion.")
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Merriam-Webster unabridged
