1) Funding for a miner 2) Interest 3) Stake 4) To supply such funds to 
[n] - funds advanced to a prospector or to someone starting a business in return for a share of the profits 2. [v] - supply with funds in return for a promised share of profits
verb supply with funds in return for a promised share of profits
Finances or supplies of food, etc., furnished to a prospector in return for an interest in any discoveries made.