ostr

Old Norse

Etymology

From Proto-Germanic *justaz. Akin to Latin ius, Proto-Slavic *juxa. Compare Finnish juusto.

Noun

ostr m (genitive osts, plural ostar)

1. cheese

Declension

Declension of ostr (strong a-stem)

masculine	singular		plural
	indefinite	definite	indefinite	definite
nominative	ostr	ostrinn	ostar	ostarnir
accusative	ost	ostinn	osta	ostana
dative	osti	ostinum	ostum	ostunum
genitive	osts	ostsins	osta	ostanna

Descendants

• Icelandic: ostur
• Faroese: ostur
• Norwegian Nynorsk: ost, (dialectal) ost’e, øst, ust
• Swedish: ost
• Danish: ost
  • Norwegian Bokmål: ost
• Old Gutnish: ustr
• → North Frisian: Aast (Sylt)

Further reading

• Zoëga, Geir T. (1910), “ostr”, in A Concise Dictionary of Old Icelandic, Oxford: Clarendon Press; also available at the Internet Archive