daystarWiktionary 原文英/ˈdeɪstɑː/美/ˈdeɪstɑr/构词拆解dayday词干starstar词干词源链古英语Old English约 450–1150 年dæġsteorra↓ 继承中古英语Middle English约 1150–1500 年daysterre↓ 继承英语Englishdaystar词源说明From Middle English daysterre, from Old English dæġsteorra, equivalent to day + star. Cognate with Scots daystern (“morningstar; daystar”).释义名词noun1literaryThe planet Venus as the morning star.2poeticThe Sun.