'manure' originates from Middle English, specifically the word 'manuren,' where 'manu-' meant 'hand' and '-operare' meant 'to work.'

'manuren' transformed into the modern English word 'manure' through Old French 'manouvrer.'

Initially, it meant 'to work by hand,' but over time it evolved into its current meaning of 'animal dung used for fertilizing land.'