weapons of war; arms
Rare, formal, or literary term for military weapons and equipment. In modern Japanese, 武器 (ぶき) is the usual word for weapons.
In old documents, the word 戎器 is used to mean weapons of war.
Compound of 戎 (じゅう, 'war, arms') and 器 (き, 'tool, instrument'). The exact historical derivation is uncertain; the spelling is conventionally associated with the meaning 'weapons of war'.