What is Kengyo in Japanese Katana terminology?

The term "Kengyo" (剣形, けんぎょう) refers to a specific shape of the tang end (Nakagojiri) of a Japanese sword. In this design, the tang end is pointed and resembles the shape of a sword (Ken in Japanese). This is one of the many different shapes that the tang end of a Japanese sword can have, each with its own unique characteristics and historical significance. The shape of the tang end is an important aspect of a sword's design, contributing to its overall aesthetic and functional characteristics.