English
acetone
From acet- from acētum (“vinegar”).
The story
The -one was taken from margarone but further etymology is unclear.uncertain The source flags this step as uncertain.
Today it means
noun A colourless, volatile, flammable liquid ketone, (CH₃)₂CO, used as a solvent.
Language periods are conventional ranges, not dates for this word.
Etymograph / acetone