逝去

1. Origins, structure, and basic meaning

• Structure: 逝去 (せいきょ) is a respectful noun for a person's passing or death.
• Basic usage: 恩師の逝去を知らせる announces a former teacher's death; 元会長が逝去された uses a respectful verbal form.

2. Common pitfalls and similar expressions

• Noun for passing and respectful predicate
  • された adds honorific respect toward the deceased; the term is reserved for a person's death, not ordinary disappearance.