fundamental

ETYM Old Fren. font, fond, nom. fonz, bottom, ground, French fond bottom, foundation, fonds fund, from Latin fundus bottom, ground, foundation, piece of land. Related to Found to establish.
A reserve of money set aside for some purpose; SYN. monetary fund.

1. To furnish a fund for.
2. To set up a fund; convert into a debt.
3. To store in a fund.