Etymograph

English

fecal revolution

From fecal + revolution.

A compound of fecal + revolution

Latin faex ‘sediment, dregs’

Middle French fecal

English fecal

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

noun An event in the Ediacaran, the result of the evolution of the through-gut (“alimentary canal”) (away from the alimentary sac with mouth-anus), and thus proper feces; allowing for the freeing of oxygen in the water column, sinking of carbon to the sea floor, fertilization of the sea floor, fossilization of coprolites, evolution of coprophagy.

Language periods are conventional ranges, not dates for this word.

Etymograph / fecal revolution