恒久こうきゅう Common Noun Noun given name or forename, gender not specified English jmdict 1 noun (common) (futsuumeishi)nouns which may take the genitive case particle 'no' permanence;perpetuity English jmnedict 1 Kōkyū
恒久つねひさ place name family or surname given name or forename, gender not specified English jmnedict 1 Tsunehisa
恒久化こうきゅうか Noun Irregular English jmdict 1 noun (common) (futsuumeishi) noun or participle which takes the aux. verb suru making permanent
Shirabe