- jujitsu (n.)
- also ju-jitsu, 1875, from Japanese jujutsu, from ju "softness, gentleness" (from Chinese jou "soft, gentle") + jutsu "art, science," from Chinese shu, shut.
- martial arts (n.)
- 1909, translating Japanese bujutsu; see martial.
- ju-jitsu
- "A Japanese system of unarmed combat and physical training", Japanese jūjutsu, from jū 'gentle' + jutsu 'skill'.
- ninja
- "A person skilled in the Japanese art of ninjutsu", Japanese, literally 'spy'.