Aerobics

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late 19th century: from aero- + Greek bios ‘life’ + -ic.

wiktionary

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etymonline

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aerobics (n.)

method of exercise and a fad in early 1980s, American English, coined 1968 by U.S. physician Kenneth H. Cooper (b. 1931), from aerobic (also see -ics) on the notion of activities which require modest oxygen intake and thus can be maintained.