put someone to the sword
US /pʊt ˈsʌmˌwʌn tu ðə sɔrd/
UK /pʊt ˈsʌmˌwʌn tu ðə sɔrd/

1.
付諸刀劍, 用劍殺死
to kill someone, especially with a sword or other sharp weapon
:
•
The invading army threatened to put the entire village to the sword.
入侵軍隊威脅要將整個村莊付諸刀劍。
•
In ancient times, defeated enemies were often put to the sword.
在古代,戰敗的敵人常常被處以刀劍。