Krúnka

As defined by the Cleasby & Vigfusson Old Norse to English dictionary:

krúnka

að, to croak, of a raven; hani, krummi, hundr svín, … galar, krúnkar geltir, hrín, a ditty.

Possible runic inscription in Younger Futhark:ᚴᚱᚢᚾᚴᛅ
Younger Futhark runes were used from 8th to 12th centuries in Scandinavia and their overseas settlements