Tvinna

As defined by A Concise Dictionary of Old Icelandic (Geir Zoëga):

tvinna

(að), v. to double.

Possible runic inscription in Younger Futhark:ᛏᚢᛁᚾᚾᛅ

Also available in related dictionaries:

This headword also appears in dictionaries of other languages closely related to Old Icelandic.

• Old Norse - Cleasby & Vigfusson Dictionary
• Old Norwegian - Johan Fritzner's Dictionary
• Old Swedish - K.F Söderwall's Dictionary