judo

from WordNet (r) 3.0 (2006)

judo
    n 1: a sport adapted from jujitsu (using principles of not
         resisting) and similar to wrestling; developed in Japan

from The Collaborative International Dictionary of English v.0.48

judo \judo\ n.
   a sport adapted from jujitsu, originally a method of
   self-defense without weapons, and similar to wrestling; it
   was developed in Japan.
   [WordNet 1.5 +PJC]