ゆうきゅう 悠久 Wanikani level 54 LinksSentence search for 悠久Sentence search for ゆうきゅうKanji details for 悠 and 久Edit in JMdict Na-adjective (keiyodoshi), Noun which may take the genitive case particle 'no', Noun1. eternity; perpetuity; permanence Discussions Log in to talk about this word.