We’ve already encountered first- and second-declension nouns. Now we’ll address the third. A fair question to ask, and one which some of you may be asking, is why is there a third declension at all? Third declension is Latin’s “catch-all” category for nouns.
Here are the endings in both the singular an plural, for reference:
1. Nominative
(sing.) ---
(pl.) -es
2. Gentive
(sing.) -is
(pl.) -um
3. Dative
(sing.) -i
(pl.) -ibus
4. Accusative
(sing.) -em
(pl.) -es
5. Ablative
(sing.) -e
(pl.) -ibus
