Category:Old Norse ja-stem nouns

Old Norse ja-stem nouns.

These nouns are masculine or neuter, typically with the following endings:

• in the nominative singular: when masculine, -r (which assimilates to a preceding l, n or s), or -ir in proper names; when neuter, the bare stem;
• in the genitive singular: -s or sometimes -jar, or -is in proper names;
• in the nominative plural: when masculine, -jar, or -ir in proper names; when neuter, the bare stem.

The stem classes are named from the perspective of Proto-Germanic and may not still be visible in Old Norse inflections. This class derives from Proto-Germanic a-stems ending in j after a light root, a vowel or a velar. As a result, the stem has i-umlaut throughout.