Origin: Latin suffix -ure
Manure has 4 different meanings across 2 categories:
any animal or plant material used to fertilize land especially animal excreta usually with litter material
"The farmer spread fresh manure over the garden beds to give the vegetables a nutrient boost."
Animal excrement, especially that of common domestic farm animals and when used as fertilizer. Generally speaking, from cows, horses, sheep, pigs and chickens.
"The farmer spread the fresh manure over the garden beds to help the tomatoes grow bigger."
To cultivate by manual labor; to till; hence, to develop by culture.
"The farmer spent years manuring his small plot of land before finally growing a bountiful harvest."
The word manure comes from Old French and originally meant "to toil" or "to supervise." It traces back to the phrase for working by hand, combining roots meaning "hand" and "to work."