Samþýðast

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

samþýðast

(see þýða), v. refl. to associate, agree.

Possible runic inscription in Younger Futhark:ᛋᛅᛘᚦᚢᚦᛅᛋᛏ

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