0 a group of nouns or adjectives that decline in the same way:
How many declensions are there in German?
Rex is in the third declension
1 a situation in which a medical condition gets worse
However, in open-class first declension paradigms, a vowel-final nominative singular is identical in form to the partitive (and genitive) singular.
Broadly, it can be said that each gender had a dominant 'strong' declension.
Words from other categories, such as nouns, adverbs and prepositions, do not inherit from declension and its subtypes.
The declensions often have more than one ending for a particular case, so further subdivisions are necessary within each major paradigm.
The task, therefore, is to explain why the derived nouns don't enter one of the standard noun declensions.
For the masculine and neuter nouns, this was the a-stem declension while for feminine nouns the o-stems represented the dominant declension.
Indeed, the recounting and documenting of these exclusions as declensions comprise the major 19.
Firstly, internal sandhi is applied by morphological rules for word formation from stems, prefixes, and suffixes used in noun declension and verb conjugation.