'embouchure' originates from French, specifically the word 'emboucher,' where 'em-' meant 'in' and 'bouche' meant 'mouth.'

'emboucher' transformed into the modern English word 'embouchure' through direct borrowing from French.

Initially, it meant 'to put in the mouth,' but over time it evolved into its current meaning of 'the way of applying the mouth to an instrument.'