Human: Why is the martial art judo called judo? Assistant: 
The name judo is a combination of the Japanese words ju (meaning “gentle”) and do (meaning “way”). Judo was originally a set of techniques used to fight against a larger opponent. The founder of judo, Jigoro Kano, developed the techniques to use against a stronger, larger opponent. The name judo comes from the fact that judo is a gentle way of fighting.