析
Xi
To analyze
Tree on the left
Ax on the right
jin mu xi de xi is an ASSOCIATIVE IDEA CHARACTER (hui yi zi) it is NOT a phonosemantic compound character. It’s the idea of the ax chopping the tree to bits which is what ANALYSIS does: it breaks the thing down to its components to understand the object.
X-rays eXempify
Intensive = ANALYSIS
https://www.amazon.com/gp/product/B07PG5G8DN/ref=dbs_a_def_rwt_bibl_vppi_i21
https://www.amazon.com/gp/product/1090129823/ref=dbs_a_def_rwt_bibl_vppi_i47