研とぎ屋や

noun

knife grinder; sword sharpener; polisher; grindery

Refers to a person who sharpens knives, swords, or polishes mirrors and blades professionally, or the shop where such work is done.

• 包ほう丁ちょうが切きれなくなったので、研とぎ屋やに持もって行いった。

  My kitchen knife got dull, so I took it to the knife grinder.

• 祖そ父ふは若わかい頃ころ、刀かたなの研とぎ屋やとして働はたらいていた。

  My grandfather worked as a sword sharpener when he was young.