As defined by the Cleasby & Vigfusson Old Norse to English dictionary:
- mod. tvö-faldr, adj. twofold, Sturl. i. 85, Rb.
Possible runic inscription in Younger Futhark:ᛏᚢᛅᚢ-ᚠᛅᛚᛏᚱ
Younger Futhark runes were used from 8th to 12th centuries in Scandinavia and their overseas settlements
➞ See all works cited in the dictionary
Works & Authors cited:
- Rímbegla. (H. III.)
- Sturlunga Saga. (D. I.)