As defined by the Cleasby & Vigfusson Old Norse to English dictionary:
- þjörku- (þjǫrku-)
- see þjarka.
Orthography: The Cleasby & Vigfusson book used letter ö to represent the original Old Norse vowel ǫ. Therefore, þjörku- may be more accurately written as þjǫrku-.
Possible runic inscription in Younger Futhark:ᚦᛁᚢᚱᚴᚢ-
Younger Futhark runes were used from 8th to 12th centuries in Scandinavia and their overseas settlements