Where does “cetona” come from?

cetona (Spanish) comes from German Keton, from German Aketon, from French acétone, from Latin acētum, from French -ate, from Latin -ātus, from Proto-Italic -ātos, from Proto-Indo-European -éh₂tos — Forms adjectives from nouns, indicating the possession of a thing or a quality.

cetona (Spanish): ketone