'flacon' originates from French, specifically the word 'flacon', where the form ultimately comes from Late Latin 'flasconem' meaning 'bottle.'

'flacon' changed from Late Latin 'flasconem' to Old French/Medieval French 'flacon' and was adopted into modern English as 'flacon'.

Initially, it meant 'bottle' in a general sense, but over time it evolved to mean specifically 'a small, often decorative bottle for perfume or similar liquids.'