thumb|upright|Replica of the Tonbokiri, made in 1847, in the Tokyo National MuseumThe is one of three legendary Japanese spears created by the famed swordsmith Sengo Masazane, said to be wielded by the daimyō Honda Tadakatsu, a leading general of Tokugawa Ieyasu.
thumb|upright|Replica of the Tonbokiri, made in 1847, in the Tokyo National MuseumThe is one of three legendary Japanese spears created by the famed swordsmith Sengo Masazane, said to be wielded by the daimyō Honda Tadakatsu, a leading general of Tokugawa Ieyasu.
== Name == The spear derives its name from the myth that a dragonfly landed on its blade and was instantly cut in two. Thus tonbo (Japanese for "dragonfly") and kiri (Japanese for "cutting"), translating this spear's name as "Dragonfly Cutter".
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).