industrious (adj.)

1550s, "characterized by energy, effort, and attention; marked by industry," from Middle French industrieux (c. 1500) and directly from Late Latin industriosus, from Latin industria "diligence, activity" (see industry). Of persons, "given to industry, working diligently," 1590s. It retains the etymological sense of the Latin word while industrial serves in the modern senses. Related: Industriously; industriousness.

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