Where does “手鎖” come from?

手鎖 (Japanese) comes from Japanese 手, from Middle Chinese 手.

Ancestry of “手鎖”, step by step

手鎖 traces back through two separate lines of ancestry.

via Japanese 手

StepLanguageWordMeaning
1Japanese手a hand; a handle, grip; a paw, foreleg
2Middle Chinese手—

via Japanese 錠

StepLanguageWordMeaning
1Japanese錠a device used to make a door unopenable: a lock;...
2Middle Chinese錠—
Every word from Middle Chinese 手 →Every word from Japanese 手 →