multicurrency

adjective

mul·​ti·​cur·​ren·​cy ˌməl-tē-ˈkər-ən(t)-sē 

-ˌtī-

: involving or using more than one currency (such as Canadian currency and American currency)

a multicurrency bank account

… the Japanese are promoting the use of their own currency as a way of expanding the multicurrency reserve system in order to lessen the importance of the dollar.

—Carla Rapoport

Word History

First Known Use

1948, in the meaning defined above