Æðruorð

As defined by A Concise Dictionary of Old Icelandic (Geir Zoëga):

æðruorð

n. word of fear (engi maðr skyldi þar ~ mæla).

Possible runic inscription in Younger Futhark:ᛅᚦᚱᚢᚢᚱᚦ

Also available in related dictionaries:

This headword also appears in dictionaries of other languages closely related to Old Icelandic.

• Old Norwegian - Johan Fritzner's Dictionary