What is Kijimomogata in Japanese Katana terminology?

The term "Kijimomogata" (雉子股形, きじももがた) refers to a specific shape of the tang (Nakago) of a Japanese sword. In this design, there is a raised portion extending from the end of the tang (Nakagojiri) to the base of the blade. This raised portion is said to resemble the thigh of a pheasant (Kiji in Japanese), hence the name. This style of tang is often seen on swords from the Heian and Kamakura periods, and it can be said to symbolize ancient Japanese swords. The shape of the tang is an important aspect of a sword's design, contributing to its overall aesthetic and functional characteristics.