'carouse' originates from German, specifically the word 'garaus,' where 'gar' meant 'all' and 'aus' meant 'out.'

'garaus' transformed into the French word 'carous,' and eventually became the modern English word 'carouse' through Middle English.

Initially, it meant 'to drink up,' but over time it evolved into its current meaning of 'engaging in a lively drinking party.'