源远流长 yuányuǎnliúcháng long-standing Origin Definitions Defs Strokes Stroke Words Sentences Sents 源 yuán noun source (bound form) source of a river; fountainhead; starting point of a stream远 遠 yuǎn adjective far far away in space or time; distant; remote流 liú verb to flow to flow or stream like a liquid; to shed tears, sweat, or blood长 長 cháng adjective long long in space or time; lasting