死しなす

godan verb (-su), transitive verb

let die; allow to die; kill (indirectly)

Transitive verb meaning to cause someone or something to die, often through neglect, inaction, or by not preventing death. Stronger than 死なせる and can imply a more direct or forceful causation, sometimes used in dialect or older speech.

• 水みずをやらなくて花はなを死しなせてしまった。

  I let the flowers die by not watering them.

• 彼かれは怪け我が人にんをそのまま死しなせた。

  He left the injured person to die.