gaietyWiktionary 原文中文来自 ECDICTn.愉快，快活，高兴构词拆分gay词根/词干+-ety后缀Added to monosyllabic words, typically verbs or nouns, to form adjectives characteristic of the verb or noun.演变路径（由近及远）英语借自 ←中古法语 gaieté词源说明Borrowed from Middle French gaieté, from gai. By surface analysis, gay + -ety.释义（英文）名词 Noun(dated, uncountable) The state of being happy or merry.(dated, countable) Merrymaking or festivity.