Teamwork

wiktionary

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From team +‎ work. Compare West Frisian teamwurk(“teamwork”).

etymonline

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teamwork (n.)

also team-work, 1828 in the literal sense, "work done by a team of horses, oxen, etc." (as distinguished from manual labor), from team (n.) + work (n.). Attested by 1909 in the extended sense.