forget-me-not (n.)youdaoicibaDictYouDict[forget-me-not 词源字典]
the flowering plant (Myosotis palustris), 1530s, translating Old French ne m'oubliez mye; in 15c. the flower was supposed to ensure that those wearing it should never be forgotten by their lovers. Similar loan-translations took the name into other languages: German Vergißmeinnicht, Swedish förgätmigej, Hungarian nefelejcs, Czech nezabudka.[forget-me-not etymology, forget-me-not origin, 英语词源]