[APPENDIX I]
DECLENSIONS, CONJUGATIONS, NUMERALS, ETC.
NOUNS
[460.] Nouns are inflected in five declensions, distinguished by the final letter of the stem and by the termination of the genitive singular.
First Declension—Ā-stems, Gen. Sing. -ae
Second Declension—O-stems, Gen. Sing. -ī
Third Declension—Consonant stems and I-stems, Gen. Sing. -is
Fourth Declension—U-stems, Gen. Sing. -ūs
Fifth Declension—Ē-stems, Gen. Sing. -ē̆ī
[461.] FIRST DECLENSION. Ā-STEMS