Meaning

noun a flow of electricity through a conductor

noun a steady flow of a fluid (usually from natural causes)

noun dominant course (suggestive of running water) of successive events or ideas

originFrom Middle English curraunt, borrowed from Old French curant (French courant), present participle of courre (“to run”), from Latin currere (“to run”) (present participle currens). Doublet of courant.

Etymology from Wiktionary, CC BY-SA 3.0