鈍どん磨ま

ど

ん

ま

Meanings

1

noun, noun or participle which takes 'suru', intransitive verb

dulling; becoming blunt

Used for the gradual loss of sharpness in blades or the decline of mental faculties, often in literary or formal contexts.

長なが年ねん使つかった包ほう丁ちょうは鈍どん磨まして切きれ味あじが落おちた。
The kitchen knife, used for many years, dulled and lost its sharpness.
年としを取と

る

と

とも

に

感かん

覚かく

が

鈍どん

磨ま

し

て

いく

の

を

感かん

じる

。

I feel my senses becoming duller as I grow older.

鈍にぶる
鈍る is a more common, everyday verb for becoming dull or blunt, while 鈍磨 is a formal, literary noun/verb often used for gradual decline.
鈍どん化か
鈍化 means slowing down or becoming sluggish, whereas 鈍磨 specifically refers to dulling or blunting of sharpness or wits.

Compound of 鈍 (don, 'dull') and 磨 (ma, 'grind'), suggesting the wearing down of sharpness. The exact historical derivation is uncertain.