Relating to or involving the declension of words in grammar.
From declension + -al suffix. This is a modern grammatical term formed to describe properties related to declensions.
Declensional patterns were so important to ancient scholars that they literally organized entire dictionaries by declension class—a system that completely changed how scholars taught and learned languages for over 2,000 years.
Complete word intelligence in one call. Free tier — 50 lookups/day.