| 究 |
jiū qí gēn yuán | to trace something to its source (idiom) |
| 究 |
jiū | after all / to investigate / to study carefully / Taiwan pr. [jiu4] |
| 其 |
qí | his / her / its / their / that / such / it (refers to sth preceding it) |
| 根 |
gēn | root / basis / classifier for long slender objects, e.g. cigarettes, guitar strings / CL:条 / radical (chemistry) |
| 根 |
gēn yuán | origin / root (cause) |
| 源 |
yuán | root / source / origin |