'absinthiin' originates from Latin, specifically the word 'absinthium,' where 'absinthium' referred to 'wormwood.'

'absinthium' transformed into the French word 'absinthe,' and eventually became the modern English word 'absinthiin' through scientific nomenclature.

Initially, it referred to 'wormwood,' but over time it evolved into its current meaning of 'a bitter compound found in wormwood.'