Third Declension Patterns

(Cf. Wheelock 7, 14, 16, 23, 26)

LatinPraxis Index

Keep in mind the following variations on third-declension endings. The designation "Changes" signifies the number of forms that are different from the regular forms of third-declension nouns given in the first block of endings.

1. Regular Third-Declension NOUNS
M/F	regular	--, -is, -î, -em, -e, -ês, -um, -ibus, -ês, -ibus	mâter, mâtris, mâtrî, mâtrem, mâtre, mâtrês, mâtrum, mâtribus, mâtrês, mâtribus rêx, rêgis, rêgî, rêgem, rêge, rêgês, rêgum, rêgibus, rêgês, rêgibus
N	regular	--, -is, -î, --, -e, -a, -um, -ibus, -a, -ibus	corpus, corporis, corporî, corpus, corpore, corpora, corporum, corporibus, corpora, corporibus

2. I-STEM Third-Declension NOUNS
M/F	ONE Change	-ium genitive plural	dêns, dentis, dentî, dentem, dente, dentês, dentium, dentibus, dentês, dentibus nûbês, nûbis, nûbî, nûbem, nûbe, nûbês, nûbium, nûbibus, nûbês, nûbibus
N	FOUR Changes	-î ablative singular -ia nominative plural -ia accusative plural -ium genitive plural	animal, animâlis, animâlî, animal, animâlî, animâlia, animâlium, animâlibus, animâlia, animâlibus exemplar, exemplâris, exemplârî, exemplar, exemplârî, exemplâria, exemplârium, exemplâribus, exemplâria, exemplâribus

3. Regular Third-Declension ADJECTIVES
M/F	TWO Changes	-î ablative singular -ium genitive plural	omnis, omnis, omnî, omnem, omnî, omnês, omnium, omnibus, omnês, omnibus
N	FOUR Changes	-î ablative singular -ia nominative plural -ia accusative plural -ium genitive plural	omne, omnis, omnî, omne, omnî, omnia, omnium, omnibus, omnia, omnibus

4. Present PARTICIPLES (Cf. #3 except for abl. sg. ambiguity)
M/F	ONE or TWO Changes	-î or -e ablative singular -ium genitive plural	currêns, currentis, currentî, currentem, currentî / currente, currentês, currentium, currentibus, currentês, currentibus
N	THREE or FOUR Changes	-î or -e ablative singular -ia nominative plural -ia accusative plural -ium genitive plural	currêns, currentis, currentî, currêns, currentî / currente, currentia, currentium, currentibus, currentia, currentibus

5. Third-Declension COMPARATIVE ADJECTIVES
M/F	regular	As in Number 1	beâtior, beâtiôris, beâtiôrî, beâtiôrem, beâtiôre, beâtiôrês, beâtiôrum, beâtiôribus, beâtiôrês, beâtiôribus
N	regular	As in Number 1	beâtius, beâtiôris, beâtiôrî, beâtius, beâtiôre, beâtiôra, beâtiôrum, beâtiôribus, beâtiôra, beâtiôribus

See also the page on Third-Declension I-Stems and the Synoptic Comparative Chart of Third-Declension Patterns.

Latin Teaching Materials at Saint Louis University: © Claude Pavur 1997 - 2009. This material is being made freely available for non-commercial educational use.