棚上げ

1. Origins, structure, and basic meaning

• Structure: 棚上げ is a noun read たなあげ, meaning shelving or putting something aside. It forms the verb 棚上げする.
• Basic usage: It can describe postponing a plan when no agreement is reached or disregarding one's own failure while criticizing someone else.
  • 意見がまとまらず計画はいったん棚上げされた。 says that the plan was shelved for the time being because no agreement was reached; 自分の失敗を棚上げして他人を責めてはいけない。 warns against ignoring one's own failures while blaming others.

2. Common pitfalls and similar expressions

• 棚上げされた
  • The passive form makes the plan what was shelved, and いったん marks that treatment as temporary.
• 棚上げして
  • The て-form links setting one's own failure aside with the following act of blaming another person.
• 棚上げ and 延期
  • 延期 focuses on moving a scheduled event to a later time, while 棚上げ can leave the matter itself unaddressed for now.