Revolutionary

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late Middle English: from Old French, or from late Latin revolutio(n- ), from revolvere ‘roll back’ (see revolve).

wiktionary

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Compare French révolutionnaire.

etymonline

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revolutionary (adj.)

"pertaining to or concerned with revolution in government," 1774; see revolution + -ary. As a noun, "one who desires or endeavors to effect social or political revolution," by 1850 (compare revolutionist).