Similar word to re-fund:

banknote, bread, buck, bullion, cabbage, chicken feed, coin, coinage, currency, dinero, dough, funds, green stuff, investment, legal tender, lot, mazumah, note, payment, pledge, principal, ready assets, refund, remuneration, reserve, resources, riches, savings, scratch, security, skins, stock, supply, treasure, wampum, wherewithal