討つ

1. Origins, structure, and basic meaning

• Structure: 討つ (うつ) adds okurigana つ to subduing 討, forming a transitive verb.
• Basic usage: It describes avenging a lord or joining forces to defeat a threatening monster.

2. Common pitfalls and similar expressions

• Defeat with a purposeful or narrative force
  • 討つ is stronger than merely striking once; it presents overcoming an enemy, target, or avenged foe.