present-participle adjective from fall (v.). Falling star is from 1560s; falling off "decrease, declining" is from c. 1600. Falling evil "epilepsy" is from early 13c.
falling temperature
falling incomes
a falling market
falling rain
fallacy
fallback
fallen
fallibility
fallible
falling
Fallopian
fallout
fallow
false
falsehood
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