Etymology
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overwork (v.)

"to cause to work too hard," 1520s, from over- + work (v.). The figurative sense of "to work into a state of excitement and confusion" is by 1640s. Old English oferwyrcan meant "to work all over," i.e. "to decorate the whole surface of." Related: Overworked; overworking.

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overwork (n.)

"work beyond a person's strength, excessive labor," 1819; see overwork (v.). Middle English ofer-werc, Old English ofer-geweorc (West Saxon) meant "a superstructure, a work raised over something," hence "sarcophagus, tomb."

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overwrought (adj.)

of feelings, imagination, etc., "worked up to too high a pitch, overexcited," 1758, literally "over-worked, worked too hard or too much," from over- + wrought. Earlier it meant "exhausted by work" (1660s), of oxen, etc., as a literal past participle of overwork (v.).

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spent (adj.)
"consumed," mid-15c., past-participle adjective from spend. Of time, "passed, over," from 1520s; as "worn out, exhausted from overwork," 1560s.
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