declension

(n) the inflection of nouns and pronouns and adjectives in Indo-European languages
(n) process of changing to an inferior state decline in quality, worsening, deterioration,
(n) a downward slope or bend declivity, downslope, declination, decline, fall, descent,
(n) a class of nouns or pronouns or adjectives in Indo-European languages having the same (or very similar) inflectional forms
- the first declension in Latin

decline in quality worsening deterioration declivity downslope declination decline fall descent

acclivity ascent climb upgrade raise rise