kunai technique

a blanket term for various styles of Japanese hand-to-hand martial arts, either wholly unarmed or using short weapons / jujutsu / short for 武神館武道体術(ぶじんかんぶどうたいじゅつ) (Bujinkan Budō Taijutsu)

to depose; to give a statement

affidavit, testimony

杖術: a traditional Japanese martial art using a shortened staff, also known as 杖道 (じょうどう, jōdō)

abstract / extract / sample from a group

abstraction / extraction / sampling from a group

also known as 杖道 (jōdō), a traditional Japanese martial art using a shortened staff: a kind of stick fighting

to describe

the aforementioned, aforestated