Old Japanese citations of

Man'yōshū edit

  • c. 759, Man’yōshū, book 2, poem 197a:
    明日香川四我良美渡之塞益者進留水母能杼爾賀有萬思
    ASUKAGAPA sigarami₁ WATAsi SEKAmaseba NAGARUru MI₁DU mo no₂do₂ni ka ARAmasi
    If I dam a weir in Asukagapa, the flowing water will be there.