刃は文もん

noun

temper pattern of a sword blade

Refers to the visible wavy or straight pattern along the edge of a Japanese sword blade, created during the differential hardening process. A technical term used in sword appreciation and craftsmanship.

• 日本にほん刀とうの刃は文もんは、刀とう工こうの個こ性せいが表あらわれる部ぶ分ぶんだ。

  The temper pattern of a Japanese sword is where the swordsmith's individuality shows.

• この刀かたなの刃は文もんは美うつくしい直すぐ刃はだ。

  The temper pattern on this sword is a beautiful straight line.