言いい伏ふせる

ichidan verb, transitive verb

argue down; talk down; out-argue

To defeat someone in an argument by speaking more forcefully or persuasively, making them unable to counter.

• 彼かれは相あい手てを言いい伏ふせて、自じ分ぶんの意い見けんを通とおした。

  He argued his opponent down and got his own opinion through.

• 議ぎ論ろんでは、感かん情じょう的てきにならずに冷れい静せいに言いい伏ふせるのが効こう果か的てきだ。

  In a debate, it's effective to calmly talk someone down without getting emotional.