束
ソク, たば, たば.ねる, つか, つか.ねる

bundle, sheaf, ream, tie in bundles, govern, manage, control

JLPT3 G4 S7 F918

The relevant seal inscription form is 木# tree/wood + a cord for bundling → compact firewood by wrapping a cord around it → *bundle* → *restrict*; *refrain*; *counter* (for bundled objects).

[Full Kanji Etymology List]