1.Unfortunately we know less about them than we should like since they are kept mainly in charters, runic books, a few poems, and some interlinear translations of the Bible.

1.不幸，对它了解不如想要多，因为它主要只存在于契约/宪章/公文、古北欧文书、诗和一些圣经隔行穿插译本中。