Grann-hygginn

Meaning of Old Norse word "grann-hygginn"

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

grann-hygginn

adj. silly, of weak understanding.

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