'acarol' originates from Middle English, specifically the word 'carol,' where 'carol' meant 'a joyful song or dance.'

'carol' transformed into the modern English word 'acarol' to emphasize its association with Christmas hymns.

Initially, it meant 'a joyful song or dance,' but over time it evolved into its current meaning of 'a song or hymn of joy, especially for Christmas.'