The term "grubstake" has its origins in mining and refers to providing financial support or resources, usually in the form of capital, to a new venture or project. The idea is that the person who provides this initial investment, known as the grubstaker, will share in any profits generated by the enterprise once it gets off the ground. In other words, the grubstake serves as a kind of seed money that can help turn an idea into reality and ultimately lead to success for both parties involved.