Tvau-falda

Meaning of Old Norse word "tvau-falda"

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

tvau-falda

að, to double.

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