kuniggety
2nd Black Belt
How about? Well its the usual honorific we use when we wear Japanese style clothes to train in and do things that have evolved from Japan and still call it Jujitsu.
They don't even use the Japanese spelling. To convert it to Portuguese would probably make the name much longer. Even the uniform itself is a bit different than a judo gi. You can honor your roots and distance yourself from it/have your own identity at the same time.