Norrœna

Etymology
From Proto-Germanic *nurþrōnijō. Cognate with English northern.

Noun
norrœna f
 * 1) Old Norse (language)

Declension
Runic Forms (the standardized runic form is underlined)
 * nuruna (Danish Runic Inscription 107: DR107) In this inscription "norrœna" is used as an inflected form of the adjective "norrœnn" and not as a noun to describe the Norse language, however, the runic form is still the same.