歳さい星せいさいせいMeanings1nounJupiterArchaic or literary term for the planet Jupiter, derived from Chinese astrology. In modern Japanese, 木星 (もくせい) is the standard word.歳さい星せいは、古こ代だい中ちゅう国ごくで木もく星せいを指さす言こと葉ばだった。歳星 was a term for Jupiter in ancient China.
