摩ま耗もう

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

wear; abrasion

Refers to material loss from friction or use, often in mechanical or material contexts. Can be used as a noun or with する to describe the process of wearing down.

• タイヤの摩ま耗もうが激はげしいので交こう換かんが必ひつ要ようだ。

  The tire wear is severe, so it needs to be replaced.

• 機き械かい部ぶ品ひんは長なが年ねんの使し用ようで摩ま耗もうしてしまった。

  The machine parts wore down after years of use.