currency
n.
1650s, "condition of flowing," from Latin currens, present participle of currere "to run" (see current, adj.); the sense of a flow or course extended 1699 (by John Locke) to "circulation of money."
〔李〕[curr =to run跑动；-ency →“the act or fact of running跑动的行为或事实”→] n. ①a passing from person to person；circulation传播，流通
〔蒋〕[cur跑→行，-ency名词后缀] 流行，流通，流通货币，通货