The suffix is "jutsu" not "itsu" btw.

Hence "karate-do" or "karate-jutsu".

Many people make a big deal about the suffix. In the end, all traditional far Eastern martial arts have an ethos along the "do" lines, irrespective of what they call themselves. The Japanese weapons schools as well as Jigaro Kano's judo influenced karate to take on a "do" suffix principally to give respectability.
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