Board Thread:Episode Discussion/@comment-14138255-20171114222226/@comment-25396609-20171115005904

According to what I've found, Yuma can be NAtive American and mean "chief's son", or by adding an extra U Japanese (copy+pasted from behind the name); Yuuma is From Japanese 悠 (yuu) meaning "distant, leisurely" or 優 (yuu) meaning "excellence, superiority, gentleness" combined with 真 (ma) meaning "real, genuine". Other combinations of kanji can form this name as well.