Old Norse
Etymology
Inherited from Proto-Germanic *þarbaz, related to þǫrf (“need, necessity”) and þurfa (“to need”). Cognate with Gothic 𐌸𐌰𐍂𐌱𐍃 (þarbs, “necessary; needy”).
Adjective
þarfr
- useful, beneficial
Declension
Weak declension of þarfr
| singular
|
masculine
|
feminine
|
neuter
|
| nominative
|
þarfi
|
þarfa
|
þarfa
|
| accusative
|
þarfa
|
þǫrfu
|
þarfa
|
| dative
|
þarfa
|
þǫrfu
|
þarfa
|
| genitive
|
þarfa
|
þǫrfu
|
þarfa
|
|
|
| plural
|
masculine
|
feminine
|
neuter
|
| nominative
|
þǫrfu
|
þǫrfu
|
þǫrfu
|
| accusative
|
þǫrfu
|
þǫrfu
|
þǫrfu
|
| dative
|
þǫrfum
|
þǫrfum
|
þǫrfum
|
| genitive
|
þǫrfu
|
þǫrfu
|
þǫrfu
|
Declension of comparative of þarfr
| singular
|
masculine
|
feminine
|
neuter
|
| nominative
|
þarfari
|
þarfari
|
þarfara
|
| accusative
|
þarfara
|
þarfari
|
þarfara
|
| dative
|
þarfara
|
þarfari
|
þarfara
|
| genitive
|
þarfara
|
þarfari
|
þarfara
|
|
|
| plural
|
masculine
|
feminine
|
neuter
|
| nominative
|
þarfari
|
þarfari
|
þarfari
|
| accusative
|
þarfari
|
þarfari
|
þarfari
|
| dative
|
þǫrfurum
|
þǫrfurum
|
þǫrfurum
|
| genitive
|
þarfari
|
þarfari
|
þarfari
|
Strong declension of superlative of þarfr
| singular
|
masculine
|
feminine
|
neuter
|
| nominative
|
þarfastr
|
þǫrfust
|
þarfast
|
| accusative
|
þarfastan
|
þarfasta
|
þarfast
|
| dative
|
þǫrfustum
|
þarfastri
|
þǫrfustu
|
| genitive
|
þarfasts
|
þarfastrar
|
þarfasts
|
|
|
| plural
|
masculine
|
feminine
|
neuter
|
| nominative
|
þarfastir
|
þarfastar
|
þǫrfust
|
| accusative
|
þarfasta
|
þarfastar
|
þǫrfust
|
| dative
|
þǫrfustum
|
þǫrfustum
|
þǫrfustum
|
| genitive
|
þarfastra
|
þarfastra
|
þarfastra
|
Weak declension of superlative of þarfr
| singular
|
masculine
|
feminine
|
neuter
|
| nominative
|
þarfasti
|
þarfasta
|
þarfasta
|
| accusative
|
þarfasta
|
þǫrfustu
|
þarfasta
|
| dative
|
þarfasta
|
þǫrfustu
|
þarfasta
|
| genitive
|
þarfasta
|
þǫrfustu
|
þarfasta
|
|
|
| plural
|
masculine
|
feminine
|
neuter
|
| nominative
|
þǫrfustu
|
þǫrfustu
|
þǫrfustu
|
| accusative
|
þǫrfustu
|
þǫrfustu
|
þǫrfustu
|
| dative
|
þǫrfustum
|
þǫrfustum
|
þǫrfustum
|
| genitive
|
þǫrfustu
|
þǫrfustu
|
þǫrfustu
|
Derived terms
- óþarfr (“harmful, destructive”)
Further reading
- Zoëga, Geir T. (1910) “þarfr”, in A Concise Dictionary of Old Icelandic, Oxford: Clarendon Press, page 508; also available at the Internet Archive