Þarfa

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

þarfa

(að), v. impers., e-m ~r e-t, it is necessary for one, one is in want of (fekk svá mikinn fjárhlut sem honum þótti sér ~).

Possible runic inscription in Younger Futhark:ᚦᛅᚱᚠᛅ

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