With every word which cam to mouthe,
Of eny thing whan he was wroth,[1576]
He wolde swere his commun oth,
Be Lethen and be Flegeton,[1577]
Be Cochitum and Acheron, 1110
The whiche, after the bokes telle,
Ben the chief flodes of the helle:[1578]
Be Segne and Stige he swor also,
That ben the depe Pettes tuo
Of helle the most principal.