Abbast

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

abbast

(að), v. refl. to be angry, to quarrel (~ við e-n, upp á e-n).

Possible runic inscription in Younger Futhark:ᛅᛒᛒᛅᛋᛏ

Also available in related dictionaries:

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

• Old Norse - Cleasby & Vigfusson Dictionary
• Old Norwegian - Johan Fritzner's Dictionary