Where does “腕を振るう” come from?

腕を振るう (Japanese) comes from Japanese 腕, from Japanese 腕輪, from Japanese 輪 — ring; circle.

腕を振るう (Japanese): to display one's ability

Definitions

  1. to display one's ability

Ancestry of “腕を振るう”, step by step

腕を振るう traces back through two separate lines of ancestry.

via Japanese 腕

StepLanguageWordMeaning
1Japanese腕arm; ability; skill; talent
2Japanese腕輪bracelet
3Japanese輪ring; circle

via Japanese を

StepLanguageWordMeaning
1JapaneseをA case particle; A conjunctive particle, usually...
2Proto-Japonicwoaccusative marker; away from, off
Every word from Japanese 輪 →Every word from Japanese 腕 →Every word from Japanese 腕輪 →