*raiff*

a. (Economics) Designating, or pertaining to, a form of cooperative bank founded among the German agrarian population by Friedrich Wilhelm Raiffeisen (1818-88); as, Raiffeisen banks, the Raiffeisen system, etc. The banks are unlimited-liability institutions making small loans at a low rate of interest, for a designated purpose, to worthy members only. [ Webster 1913 Suppl. ]