To produce fruit or beneficial results; to make fruitful or productive.
From Latin fructuatus, past participle of fructuare (to bear fruit), derived from fructus (fruit). This is a learned formation paralleling fructify.
Fructuate is the rarer sibling of 'fructify'—scholars preferred fructify, so fructuate became obsolete by the 18th century. But when you find it in old texts, it carries the same weight: the idea that human action can make the world more productive.
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