Knatta

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

knatta

að, to lift to the level of one’s head; also járn-knatta.

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