noun
one long sword
Literary or historical term for a single long sword, often used in martial or poetic contexts.
彼は長刀一枝を腰に帯びていた。
He wore one long sword at his waist.
長刀 (ちょうとう) means 'long sword' in general, while 長刀一枝 specifies 'one long sword'.
Compound of 長刀 (ちょうとう, 'long sword') and 一枝 (いっし, 'one branch' or 'one piece'), literally 'one long sword'. The exact historical derivation is uncertain; the spelling is conventionally associated with the meaning.