In addition, in the johyobun (memorial to the Emperor) of the first Japanese envoy to Sui Dynasty China in 600 described in 'Volume 80 chapter 46 Dongyi Wakoku' in "Suishu" (the Book of Sui Dynasty), it says 'in the year 600, the king of Wa, the surname Ame, the popular name Tarishihoko, calling himself Okimi' and it is thought that the title of the king of Wa, Tarishihiko, represents 'okimi.'
その他、『隋書』「卷八十一列傳第四十六東夷俀國」に記述される開皇20年（600年）第1回遣隋使の上奏文に「俀王姓阿毎字多利思北孤號阿輩雞彌」とあり、俀王多利思比孤の号「阿輩雞彌」が「おおきみ」を表すと考えられている。