From Japanese-English FreeDict Dictionary ver. 0.1: 亘古 /(en)tʃˈaɪniːz(ja)lˈe̞tə (en)tʃˈaɪniːz(ja)lˈe̞tə/, こうこ /ko̞ˈɯᵝko̞/ (noun (common) (futsuumeishi)) Note: archaismfor ever, from ancient times
亘古 /(en)tʃˈaɪniːz(ja)lˈe̞tə (en)tʃˈaɪniːz(ja)lˈe̞tə/, こうこ /ko̞ˈɯᵝko̞/ (noun (common) (futsuumeishi))
Note: archaismfor ever, from ancient times