That six words are blade's names in Final Fantasy Tactics, ain't they?
1. Asura is the name of Indian God. such named blade doesn't exist in Japan.
2. Bizen Boat is wrong. Bizen Osafune is correct. it's the forge master's name and the some blade's name he made.
3. Kiyomori is a historical person in Japan. but he wasnt a forge master. obviously such named blade doesn't exist.
4. Muramasa is the forge master's name and the some blade's name he made. the blades named Muramas are called "You-Tou (妖刀)", which means the blade might be held something supernatural and cut scarily sharp. it is said that the blades named Muramasa cursed Tokygawa
Shogun, for that reason, they are almost broken and hardly remained.
5. Kikuichimonji is the forge master's name and the some blades' name he made.
6. chirichiraden? maybe it means the blade like designed in mother-of-pearl inlay. I feel it not sharp.(^^;) obviously such named blade don't exist.