Available Definitions:
1) v. t. - To cultivate by manual labor; to till; hence, to develop by culture.
2) v. t. - To apply manure to; to enrich, as land, by the application of a fertilizing substance.
3) n. - Any matter which makes land productive; a fertilizing substance, as the contents of stables and barnyards, dung, decaying animal or vegetable substances, etc.