English
kavalactone
From kava + lactone.
A compound of kava + lacto- + -one + lactone
Latin lac ‘milk’
German Keton ‘ketone’
English ketone
English lactone
Today it means
noun Any of a class of lactone compounds found in the kava shrub.
Language periods are conventional ranges, not dates for this word.
Etymograph / kavalactone