English
revolutionary
Compare French révolutionnaire; equivalent to revolution + -ary.
Formed from revolution + -ary
Proto-Indo-European *welH- ‘to roll’
…
Latin revolvō ‘roll back’
Late Latin revolūtiō ‘the act of revolving’
Old French revolucion ‘passage’
Middle English revolucion
English revolution
Today it means
adj Of or pertaining to a revolution in government; tending to, or promoting, revolution
Language periods are conventional ranges, not dates for this word.
Etymograph / revolutionary