粗あら研とぎ

noun

rough sharpening; coarse grinding

The initial stage of sharpening a blade using a coarse stone (粗砥) to shape the edge before finer stones are used. Common in knife and tool maintenance contexts.

See also: 粗砥

• 包ほう丁ちょうの刃はが欠かけたので、まず粗あら研とぎから始はじめた。

  The kitchen knife blade was chipped, so I started with rough sharpening first.

• 粗あら研とぎが終おわったら、中なか砥とで仕し上あげます。

  After rough sharpening is done, I finish with a medium-grit stone.