源流 (genryuu) Japanese meaning: source of a river | KotomoraThe source of that river is deep in the mountains.
Usage patterns
〈場所〉に源流があるto have its source in (a place)
This river has its source on Mt. Fuji.
源流をたどるto trace something back to its source
She is researching the origins of Japanese culture.
〈事〉の源流となるto become the origin/root of something
This idea became the source of modern philosophy.
