randori
/ranˈdɔːri/Martial Arts (originally and chiefly Ju-jitsu and Judo )
noun
Informal or freestyle training or practice; a session of this.
Origin
Early 20th century; earliest use found in The Times. From Japanese randori free practice (originally in ju-jitsu), plundering from ran- disorder, random activity + -dori, combining form (after n) of tori, nominalized stem of toru to take, take hold of.