Kotomora
JLPT N1Suffix
Furigana

びるTake on a quality

This suffix forms an established verb meaning that someone or something takes on or displays a particular quality. It often describes a natural change in appearance or character rather than deliberate behavior.

How it works

The completed verb describes a quality becoming noticeable in appearance, atmosphere, or character. Common established members of this small family include 大人おとなびる, ふるびる, and 田舎いなかびる. Once formed, each behaves like an ichidan verb.

Established forms in context

じゅうねん使つかつづけたつくえは、すっかりふるびた

The wooden desk, used continuously for ten years, had become thoroughly worn.

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The change results naturally from age and use.

びて、しょうねんかおつきはきゅう大人おとなびてきた。

As he grew taller, the boy's features suddenly began to look more mature.

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Nothing here suggests that the boy is intentionally acting mature.

えきはなれると、田舎いなかびたふうけいひろがっていた。

Beyond the station, a rustic landscape stretched out.

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Natural change versus deliberate posing

びる can describe a quality acquired through age, growth, environment, or wear, without any intention. By contrast, ぶる often suggests deliberately acting or presenting oneself as something, sometimes with a critical tone.

かれせんもんぶってむずかしいことばかり使つかう。

He acts like an expert and uses nothing but difficult words.

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This neighboring form describes a deliberate pose, not a naturally acquired quality.

More examples

このかわ使つかむほどぜんふるびる

This leather ages naturally the more it is used.

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かのじょはまだわかいが、はなかたいていて大人おとなびている

She is still young, but her calm way of speaking makes her seem mature.

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うみちいさなまちには、すこ田舎いなかびたふんがあった。

The small seaside town had a slightly rustic atmosphere.

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あめかぜにさらされ、もんもくざいはすっかりふるびていた

Exposed to wind and rain, the wood of the gate had become thoroughly weathered.

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そつぎょうしきおとうとは、きゅう大人おとなびたようにかんじられた。

My younger brother suddenly seemed more mature when I saw him at the graduation ceremony.

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ちゅうしんがいはなれるにつれて、景色けしきだい田舎いなかびていく

As you move away from the city center, the scenery gradually becomes more rustic.

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びる (biru) – Take on a quality