'adorn' originates from Latin, specifically the word 'adornare,' where 'ad-' meant 'to' and 'ornare' meant 'furnish or equip.'

'adornare' transformed into the Old French word 'aorner,' and eventually became the modern English word 'adorn' through Middle English.

Initially, it meant 'to furnish or equip,' but over time it evolved into its current meaning of 'to decorate or add beauty to something.'