Herstast

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

herstast

(st), v. refl. to speak harshly to one (~ á e-n).

Possible runic inscription in Younger Futhark:ᚼᛁᚱᛋᛏᛅᛋᛏ

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