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mid-15c., from Middle French fertil and directly from Latin fertilis "bearing in abundance, fruitful, productive," from ferre "to bear" (see infer). Fertile Crescent (1914) was coined by U.S. archaeologist James H. Breasted (1865-1935).
fertile fer·tile (fûr'tl)
Capable of conceiving and bearing young.
Fertilized. Used of an ovum.