気きを失うしなう

expression, godan verb (-u)

lose consciousness; faint; black out

Common expression for losing consciousness, whether from shock, injury, illness, or emotional stress. Can be used literally or figuratively.

• 彼かれはその知しらせを聞きいて気きを失うしなった。

  He lost consciousness upon hearing the news.

• 暑あつさで気きを失うしないそうになった。

  I almost fainted from the heat.