What are the Latin declension endings?
Nominative and accusative cases of neuter nouns are always the same. The plural always ends in '-a'. Accusative singular for masculine and feminine nouns always ends in '-m'; accusative plural for masculine and feminine nouns always ends in '-s'. Genitive plural of all declensions ends in '-um'.
What are 2 1 2 endings in Latin?
The 2-1-2 adjective can be recognized from endings of all three entries (-us, -a, -um or -r, -a, -um). The three forms listed tells us the nominative singular form for all three genders - masculine, feminine, and neuter (from left to right). The declension of these adjectives is relatively simple.