溯源 sù yuán 🔊 to investigate the origin of sth + Review this word Meanings sù yuán to investigate the origin of sthto trace a river upstream back to its source Its characters 溯sùto go upstream源yuánroot Words with 溯源 追根溯源 zhuī gēn sù yuán to pursue sth back to its origins 追本溯源 zhuī běn sù yuán to trace sth back to its origin 推本溯源 tuī běn sù yuán to go back to the source 寻根溯源 xún gēn sù yuán see 追根溯源[zhui1 gen1 su4 yuan2] 逆流溯源 nì liú sù yuán to go back to the source