As defined by the Cleasby & Vigfusson Old Norse to English dictionary:
- fjögur-tán (fjǫgur-tán)
- fjogurtándi, older form, = fjórtan.
Orthography: The Cleasby & Vigfusson book used letter ö to represent the original Old Norse vowel ǫ. Therefore, fjögur-tán may be more accurately written as fjǫgur-tán.
Possible runic inscription in Younger Futhark:ᚠᛁᚢᚴᚢᚱ-ᛏᛅᚾ
Younger Futhark runes were used from 8th to 12th centuries in Scandinavia and their overseas settlements