From Japanese 辺, 邊 (be) “area, place, vicinity” or 倍 (be) meaning “multiple times” or 部 (be) meaning “part, section” combined with 四 (shi) “four”, 清 (shi) “clean, pure, clear”, 詩 (shi) “poetry, poem, verse” 志 (shi) “will, purpose, ambition”, or 史 (shi) meaning “history”. Other kanji combinations are also possible.