悔くゆじ字FuriganaMeanings1nidan verb (upper class) with 'yu' ending (archaic), transitive verbto regretarchaicArchaic transitive verb; the modern equivalent is 悔いる (くいる). Found in classical Japanese texts.See also: 悔いるくゆは、古こ語ごで後こう悔かいすることを意い味みした。くゆ meant to regret in classical language.