previous next

DECLENSION OF NOUNS

36. Declension is produced by adding terminations originally significant to different forms of stems, vowel or consonant. The various phonetic corruptions in the language have given rise to the several declensions. Most of the case-endings, as given in Latin, contain also the final letter of the stem.

Adjectives are, in general, declined like nouns, and are etymologically to be classed with them; but they have several peculiarities of inflection (see § 109 ff.).

37. Nouns are inflected in five Declensions, distinguished by the final letter (characteristic) of the Stem, and by the case-ending of the Genitive Singular.

DECL. 1 CHARACTERISTIC ā GEN. SING. ae
2 ŏ ī
3 ĭ or a Consonant ĭs
4 ŭ ūs
5 ē ēī

a. The Stem of a noun may be found, if a consonant stem, by omitting the case-ending; if a vowel stem, by substituting for the case-ending the characteristic vowel.

38. The following are General Rules of Declension:—

a. The Vocative is always the same as the Nominative, except in the singular of nouns and adjectives in -us of the second declension, which have -e in the vocative. It is not included in the paradigms, unless it differs from the nominative.

b. In neuters the Nominative and Accusative are always alike, and in the plural end in -ă.

c. The Accusative singular of all masculines and feminines ends in -m; the Accusative plural in -s.

d. In the last three declensions (and in a few cases in the others) the Dative singular ends in -ī.

e. The Dative and Ablative plural are always alike.

f. The Genitive plural always ends in -um.

g. Final -i, -o, -u of inflection are always long; final -a is short, except in the Ablative singular of the first declension; final -e is long in the first and fifth declensions, short in the second and third. Final -is and -us are long in plural cases.


Case-endings of the Five Declensions

39. The regular Case-endings of the several declensions are the following:—1

DECL. I DECL. II DECL. III DECL. IV DECL. V
SINGULAR
F. M. N. M.,F. N. M. N. F.
NOM. -a -us -um -s -us -ēs
---- (modifled stem)
GEN. -ae -is -ūs -ēī ( -ē
DAT. -ae -uī ( -ū -ēī ( -ē
ACC. -am -um -um -em ( -im (like nom.) -um -em
ABL. -e ( -ī
VOC. -a -e -um (like nom.) -us -ēs
PLURAL
N.V. -ae -ī -a -ēs -a, -ia -ūs -ua -ēs
GEN. -ārum -ōrum -um, -ium -uum -ērum
D.AB. -īs -īs -ibus -ibus ( -ubus -ēbus
ACC. -ās -ōs -a -ēs ( -īs -a, -ia -ūs -ua -ēs

1 For ancient, rare, and Greek forms (which are here omitted), see under the several declensions.

hide Display Preferences
Greek Display:
Arabic Display:
View by Default:
Browse Bar: