による

expression, godan verb (-ru)

by means of; due to; because of; according to

Expresses cause, reason, means, or basis. The nuance depends on context: による can indicate an agent, a cause, a source, or a standard. Often used in formal or written Japanese.

• 事じ故こによる遅おくれが発はっ生せいしています。

  There is a delay due to an accident.