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revolt [revolt 词源字典]: revolt: [16] Latin volvere meant ‘roll’ (it is the source of English vault ‘jump’). Addition of the prefix re- ‘back’ produced revolvere ‘roll back, unroll’, hence ‘come to the original point, return, revolve’. English acquired this as revolve [14], and also took over its late Latin derivative revolūtiō via Old French as revolution [14], whose leading modern meaning ‘violent overthrow of a government’ emerged in the 16th century via an intermediate ‘complete reversal’.

The term revolver [19] for a pistol with a revolving chamber was apparently coined by its inventor Samuel Colt. Revolt itself came via French révolter and Italian rivoltare from Vulgar Latin *revolvitāre, a derivative of revolvere.
=> vault, volume[revolt etymology, revolt origin, 英语词源]
mischief (n.): c. 1300, "evil condition, misfortune, need, want," from Old French meschief "misfortune, harm, trouble; annoyance, vexation" (12c., Modern French méchef), verbal noun from meschever "come or bring to grief, be unfortunate" (opposite of achieve), from mes- "badly" (see mis- (2)) + chever "happen, come to a head," from Vulgar Latin *capare "head," from Latin caput "head" (see capitulum). Meaning "harm or evil considered as the work of some agent or due to some cause" is from late 15c. Sense of "playful malice" first recorded 1784.

Mischief Night in 19c. England was the eve of May Day and of Nov. 5, both major holidays, and perhaps the original point was pilfering for the next day's celebration and bonfire; but in Yorkshire, Scotland, and Ireland the night was Halloween. The useful Middle English verb mischieve (early 14c.) has, for some reason, fallen from currency.