Einstrengja

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

einstrengja

(-da, -dr), v. to make firm; ~ þá ætlan fyrir sér at, to resolve firmly.

Possible runic inscription in Younger Futhark:ᛁᛁᚾᛋᛏᚱᛁᚾᚴᛁᛅ

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