折(お)り紙(がみ)付(つ)き

おりがみつき

noun, no-adjective

guaranteed; of proven quality

1. guaranteed quality; certified; of proven merit

Describes something or someone whose quality, skill, or authenticity has been officially or widely recognized. Used to vouch for the excellence of a person's abilities or the quality of an item.

あの店(みせ)の味(あじ)は折(お)り紙(がみ)付(つ)きだ。

That restaurant's food is of guaranteed quality.

折(お)り紙(がみ)付(つ)きの実力(じつりょく)を持(も)っている。

They have proven ability.

彼女(かのじょ)の語学力(ごがくりょく)は先生(せんせい)からも折(お)り紙(がみ)付(つ)きで、海外(かいがい)赴任(ふにん)にも安心(あんしん)だ。

Her language skills are vouched for even by her teacher, so there's no worry about her overseas assignment.

Composed of 折(お)り紙(がみ) (folded paper, certificate) + 付(つ)き (attached). Historically, 折(お)り紙(がみ) referred to a certificate of appraisal for swords, tea utensils, and other valuable items. When something came with such a certificate, its quality was guaranteed — hence the modern figurative meaning.

Common collocations

折(お)り紙(がみ)付(つ)きの実力(じつりょく): proven ability
折(お)り紙(がみ)付(つ)きの品質(ひんしつ): guaranteed quality
折(お)り紙(がみ)付(つ)きの腕前(うでまえ): certified skill

Similar words

太鼓判(たいこばん)を押(お)す: to vouch for, to guarantee — more active, implies someone is actively endorsing
保証(ほしょう)付(つ)き: with guarantee — more literal and commercial

Etymology

The 折(お)り紙(がみ) here is not the paper-folding art, but rather a type of formal certificate used in the Edo period to authenticate the value of swords and art objects.

general

Added 2026.4.5 12:31 · Revised 2026.9.2 13:02

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