As defined by the Cleasby & Vigfusson Old Norse to English dictionary:
- u, f. a hard swelling, hard as wood to the touch: stokk-bólginn, part. hard-swollen.
Possible runic inscription in Younger Futhark:ᛋᛏᚢᚴᚴ-ᛒᚢᛚᚴᛅ
Younger Futhark runes were used from 8th to 12th centuries in Scandinavia and their overseas settlements