Dictionary/永代えいたいEitai永代 (Eitai) is a Japanese noun meaning “permanence, eternity”.Meaningsnounpermanence; eternityKanji in 永代永eternity代substituteRelated words長いlong (distance, length)時代period世world替わるto succeed永遠eternityお代わりanother helping代表representation千代thousand years替えるto replace長年many years代理representation先代previous generation (of a family)