adjectives: WEAK INFLECTION

adjectives: WEAK INFLECTION

The weak adjective inflection, used with definite nouns, has only four different endings, and they look very much like the n-stem noun endings (they are related).
As you can see auðigr uses the syncopated stem auðg- in all cases, since all endings begin with a vowel.

sing. sing.
nom. lang-i lang-a lang-a nom. auðg-i auðg-a auðg-a
gen.
dat.
acc. lang-a löng-u lang-a gen.
dat.
acc. auðg-a auðg-u auðg-a
plur. plur.
nom.
gen. löng-u löng-u löng-u nom. auðg-u auðg-u auðg-u
dat. löng-um löng-um löng-um dat. auðg-um auðg-um auðg-um
acc. löng-u löng-u löng-u acc. auðg-u auðg-u auðg-u

See the strong declension for examples.

The va-stem adjectives have a /v/ in front of all endings beginning with /a/ and /i/. See the strong declension for examples.

The ja-stem adjectives have a /j/ in front of all endings beginning with /a/ and /u/. See the strong declension for examples.

The ON (and germanic) weak adjectival paradigm has its origin in the n-stem inflection.