Homework

wiktionary

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From home +‎ work.

etymonline

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homework (n.)

also home-work, 1680s, "work done at home," as opposed to work done in the shop or factory, from home (n.) + work (n.). In sense of "lessons studied at home," it is attested from 1889. To do (one's) homework in figurative sense "be prepared" is from 1934.