As defined by the Cleasby & Vigfusson Old Norse to English dictionary:
- m. [kollr and hnísa = a dolphin, = Dan. kollbötter], a somersault; stingast kollhnís, to make a somersault, a game.
Possible runic inscription in Younger Futhark:ᚴᚢᛚᛚ-ᚼᚾᛁᛋ
Younger Futhark runes were used from 8th to 12th centuries in Scandinavia and their overseas settlements