Tvíelleftr

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

tvíelleftr

a. twice eleven, in the phrase, vera ~, to be twenty-two years old.

Possible runic inscription in Younger Futhark:ᛏᚢᛁᛁᛚᛚᛁᚠᛏᚱ

Also available in related dictionaries:

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

• Old Norwegian - Johan Fritzner's Dictionary