c. Masculines in -er AND -ir

puer, boyager, fieldvir, man
Stemspuero-agro-viro-
Basespuer-agr-vir-
SingularTERMINATIONS
Nom.pueragervir
Gen.puerīagrīvirī
Dat.puerōagrōvirō
Acc.puerumagrumvirum-um
Abl.puerōagrōvirō
Plural
Nom.puerīagrīvirī
Gen.puerōrumagrōrumvirōrumrum
Dat.puerīsagrīsvirīss
Acc.puerōsagrōsvirōss
Abl.puerīsagrīsvirīss

[463.] THIRD DECLENSION.

CLASSIFICATIONI. Consonant Stems

1. Stems that add -s to the base to form the nominative singular:masculines and feminines only.

2. Stems that add no termination in the nominitive singular: a.masculines and feminines; b. neuters.

II. I-Stems.Masculines, feminines, and neuters.

[464.] I. CONSONANT STEMS

1. Nouns that add -s to the base to form the nominative singular: masculines and feminines only

prīnceps, m., chiefmīles, m., soldierlapis, m., stone
Bases or
Stems
prīncip-mīlit-lapid-
SingularTERMINATIONS
Nom.prīncepsmīleslapis-s
Gen.prīn´cipismīlitislapidis-is
Dat.prīn´cipīmīlitīlapidī
Acc.prīn´cipemmīlitemlapidem-em
Abl.prīn´cipemīlitelapide-e
Plural
Nom.prīn´cipēsmīlitēslapidēs-ēs
Gen.prīn´cipummīlitumlapidum-um
Dat.prīnci´pibusmīlitibuslapidibus-ibus
Acc.prīn´cipēsmīlitēslapidēs-ēs
Abl.prīnci´pibusmīlitibuslapidibus-ibus

rēx, m., kingiūdex, m., judgevirtūs, f., manliness
Bases or
Stems
rēg-iūdic-virtūt-
Nom.rēxiūdexvirtūs-s
Gen.rēgisiūdicisvirtū´tis-is
Dat.rēgīiūdicīvirtū´tī
Acc.rēgemiūdicemvirtū´tem-em
Abl.rēgeiūdicevirtū´te-e
Plural
Nom.rēgēsiūdicēsvirtū´tēs-ēs
Gen.rēgumiūdicumvirtū´tum-um
Dat.rēgibusiūdicibusvirtū´tibus-ibus
Acc.rēgēsiūdicēsvirtū´tēs-ēs
Abl.rēgibusiūdicibusvirtū´tibus-ibus

Note. For consonant changes in the nominative singular, cf. [§ 233. 3].

2. Nouns that have no termination in the nominative singular

a. Masculines and Feminines