The Japanese Kanji "尉(い - i)" has the meaning for "to repression". And this Kanji is mainly used for the ranking names of military officers in Japan like the following examples.
Here are some other popular military rank names.
- Sergeant -- 軍曹 (ぐんそう-gunsou)
- Major -- 少佐 (しょうさ-shousa)
- Lieutenant Colonel -- 中佐 (ちゅうさ-chuusa)
- Colonel -- 大佐 (たいさ-taisa)