Meaning & History
From Japanese 誠 (sei) meaning "sincerity", 省 (sei) meaning "saving, conservation", 征 (sei) meaning "subjugate", 星 (sei) meaning "star", 晴 (sei) meaning "clear up", 正 (sei) meaning "first (month of the lunar year)" or 清 (sei) meaning "pure" combined with 吾 (go) meaning "I, me". Other kanji combinations are possible.