grubstake

/G R AH1 B S T EY0 K/
noun
  1. 1

    Money, materials, tools, food etc. provided to a prospector in return for a share in future profits.

  2. 2

    An amount of money advanced to someone starting a business in return for a share of the future profits.

  3. 3

    Money, necessities stockpiled to sustain an effort for a period of time.

verb
  1. 1

    To supply such funds to.

Source: https://en.wiktionary.org/wiki/grubstake