10 letters · 13 points in Scrabble
noun the inflection of nouns and pronouns and adjectives in Indo-European languages
noun process of changing to an inferior state
noun a downward slope or bend
originFrom late Middle English declinson, from Middle French declinaison (Modern French: déclinaison), from Latin dēclīnātiō. Doublet of declination.
Etymology from Wiktionary, CC BY-SA 3.0