'declutter' originates from English, specifically the prefix 'de-' meaning 'remove' and the word 'clutter' meaning 'a collection of things lying about in an untidy mass'.

'clutter' changed from the Middle English word 'clotter' and eventually became the modern English word 'clutter'.

Initially, it meant 'to remove clutter', but over time it evolved into its current meaning of 'to remove unnecessary items'.