long blade; large sword
Historical term for a sword with a notably long blade, especially in the context of Japanese swords. Not a common everyday word.
His collection includes a rare long-bladed katana.
ōmi yari; long-bladed spear
Compound of 大 (large) and 身 (body, blade). The exact historical derivation is uncertain, but the term is conventionally associated with swords of exceptional blade length.