grub·stake 
(grŭbstāk′)
(grŭbstāk′)n.
Supplies or funds advanced to a mining prospector or a person starting a business in return for a promised share of the profits.
tr.v. grub·staked, grub·stak·ing, grub·stakes
To supply with funds in return for a promised share of profits.
grubstak′er n.