In the nominative and accusative, neuters have no case ending in the singular, and -a in the plural. In the other cases they have the same case endings as gender stems.
[472]. (a.) Examples of stems in -g-, with nominative -x, genitive -gis, are:
| -ex, -egis | grex, M., (F.), herd; aquilex, M., spring-hunter, hydraulic engineer. |
| -ēx, -ēgis | rēx, M., king; interrēx, regent; lēx, F., law; and N. and Ac. exlēx, exlēgem, beyond the law, adjective. |
| -ex, -igis | rēmex, M., oarsman. |
| -ī̆x, -ī̆gis | strī̆x, F., screech-owl. |
| -ūnx, -ūgis | coniūnx ([122, e]) or coniux, M., F., spouse. |
| -ūx, -ūgis | frūx, F., fruit. |
[473]. (b.) Examples of stems in -c-, with nominative -x, genitive -cis, are:
| -ax, -acis | fax, F., torch, no G. Pl. in good writers ([430]). |
| -āx, -ācis | pāx, F., peace, Pl. only N. and Ac. pācēs; līmāx, F., snail. |
| -ex, -ecis | faenisex, M., haycutter; nex, F., murder; precī, D., F., prayer, no N., usually plural. |
| -ēx, -ēcis | vervēx, M., wether; allēx, F., fish-pickle, also allēc, Ne. |
| -ex, -icis | Masculines mostly: apex, point; cārex, F., rush; caudex or cōdex, block, book; cīmex, bug; cortex, M., F., bark; culex, gnat; forfex, M., F., shears; frutex, shrub; īlex, F., holm-oak; illex, M., F., seducer; imbrex, tile; latex, fluid; mūrex, purple-shell; obice, Ab., M., F., bar, no N.; paelex, F., concubine, pollex, thumb; pūlex, flea; pūmex, pumice-slone; rāmex, blood-vessel; rumex, sorrel; silex, M., F., flint; sōrex, shrew-mouse; vortex or vertex, whirl; vītex, F., a shrub. Also some compounds: as, iūdex, juror; artifex, artisan; auspex, bird-viewer. |
| -ix, -icis | Feminines mostly: appendix, addition; calix, M., cup; filix, fern; fulix, gull; fornix, M., arch; larix, larch; pix, pitch, no G. Pl. ([430]); salix, willow; vārix, swollen vein; vicis, G., change, no N., D., or G. Pl. ([430]). |
| -īx, -īcis | Feminines: cervīx, neck; cicātrīx, scar; cornīx, crow; cŏ̄turnīx ([62]), quail; lōdīx, blanket; rādīx, root; struīx, heap. Also coxendīx, hip, later coxendix, coxendicis. |
| -ōx, -ōcis | vōx, F., voice. |
| -ux, -ucis | crux, F., cross; dux, M., F., leader; nux, F., nut-tree, nut; trādux, M., vinelayer. |
[474]. (2.) Stems in a dental mute, -d- or -t-, are declined as follows:
| Examples | custōs, keeper, custōd-, M. | aetās, age, aetāt-, F. | virtūs, virtue, virtūt-, F. | mīles, soldier, mīlit-, M. |
| Singular | ||||
| Nom. | custōs | aetās | virtūs | mīles |
| Gen. | custōdis | aetātis | virtūtis | mīlitis |
| Dat. | custōdī | aetātī | virtūtī | mīlitī |
| Acc. | custōdem | aetātem | virtūtem | mīlitem |
| Abl. | custōde | aetāte | virtūte | mīlite |
| Plural | ||||
| Nom. | custōdēs | aetātēs | virtūtēs | mīlitēs |
| Gen. | custōdum | aetātum | virtūtum | mīlitum |
| Dat. | custōdibus | aetātibus | virtūtibus | mīlitibus |
| Acc. | custōdēs | aetātēs | virtūtēs | mīlitēs |
| Abl. | custōdibus | aetātibus | virtūtibus | mīlitibus |
[475]. (a.) Examples of stems in -d-, with nominative -s, genitive -dis, are:
| -as, -adis | vas, M., F., personal surety, no G. Pl. ([430]). |
| -aes, -aedis | praes, M., bondsman. |
| -es, -idis | obses, M., F., hostage; praeses, M., F., overseer. *dēses, slothful, adjective. |
| -ēs, -edis | pēs, M., foot. |
| -ēs, -ēdis | hērēs, M., F., heir; exhērēs, disinherited, adjective; mercēs, F., reward. |
| -is, -idis | Feminines: capis, cup; cassis, helmet; cuspis, spear-point; prōmulsis, appetizer; lapis, M., stone. |
| -ōs, -ōdis | custōs, M., F., guard. |
| -aus, -audis | laus, F., praise. |
| -us, -udis | pecus, F., beast, head of cattle. |
| -ūs, -ūdis | Feminines: incūs, anvil; palūs, swamp, nominative once in Horace palus, as from an -o- stem; subscūs, dovetail. |
[476]. sēdēs, F., seat, has an -s- stem, namely -ēs ([236]), in the nominative, and sēd- in the other cases ([401]); G. Pl. sēdum, once sēdium (Vell. Pat.). The only example of a neuter stem in -d-, with nominative -r, genitive -dis, is cor ([171, 2]), heart, cordis, no G. Pl. ([430]).