[528]. Examples of parisyllabic neuters in -i-, with the nominative in -e, genitive -is, are:
ancīle, sacred shield; aplustre, ancient; conclāve, suite of rooms; īnsīgne, ensign; praesaepe, stall; rēte, net, Ab. rēte. Also the neuter of adjectives in -i- ‘of two endings’ ([630]), and some words in -īle, -āle, -āre, originally adjectives ([313], [314]): as, būbīle, ox-stall; fōcāle, neckcloth; cocleāre, spoon.
[529]. Sometimes a plural stem in -i- is combined, in the singular, with a stem in a mute, in -l, or -r, or rarely in -s. These mixed stems thus become imparisyllables. Gender stems of this class are like consonant stems in the singular, except the ablative of adjectives, which has usually -ī.
[530]. Imparisyllabic stems in -i- are declined as follows:
| Examples Stems | arx, citadel, arci-, F. | pars, part, parti-, F. | urbs, city, urbi-, F. | animal, animal animāli-, Ne. |
|---|---|---|---|---|
| Singular | ||||
| Nom. | arx | pars | urbs | animal |
| Gen. | arcis | partis | urbis | animālis |
| Dat. | arcī | partī | urbī | animālī |
| Acc. | arcem | partem | urbem | animal |
| Abl. | arce | parte | urbe | animālī |
| Plural | ||||
| Nom. | arcēs | partēs | urbēs | animālia |
| Gen. | arcium | partium | urbium | animālium |
| Dat. | arcibus | partibus | urbibus | animālibus |
| Acc. | arcīs, -ēs | partīs, -ēs | urbīs, -ēs | animālia |
| Abl. | arcibus | partibus | urbibus | animālibus |
[531]. Examples of stems in -ci-, with nominative -x, genitive -cis, are:
| -āx, -ācis | fornāx, F., furnace. Many adjectives ([284]): as, audāx, daring. |
| -aex, -aecis | faex, F., dregs, no G. Pl. ([430]). |
| -ex, -icis | supplex, suppliant, Ab. -ī, sometimes -e, G. Pl. supplicum. Adjectives: duplex, twofold; multiplex, manifold; quadruplex, fourfold; septemplex, sevenfold; simplex, simple; triplex, threefold. The foregoing have Ab. -ī: as, duplicī; duplice once (Hor.), septemplice twice (Ov.; Stat.); G. Pl. -ium, Ne. Pl. N. and Ac. -ia. |
| -īx, -īcis | fēlīx, happy; pernīx, nimble, adjectives. Also many feminines of the agent in -trīx ([205]): as, victrīx, victorious; these sometimes have a Ne. Pl. N. and Ac.: as, victrīcia; in the G. Pl. they have -ium, or, as substantives, -um: as, nūtrīcum, nurses. |
| -lx, -lcis | calx, F. (M.), heel; calx, M., F., limestone, no G. Pl. ([430]); falx, F., sickle. |
| -nx, -ncis | lanx, F., platter, no G. Pl. ([430]); deūnx, M., eleven twelfths; quīncunx, M., five twelfths. |
| -ox, -ocis | praecox, over-ripe, older stem praecoqui-: as, G. praecoquis; rarely with -o- stem ([401]): as, praecoquam. |
| -ōx, -ōcis | celōx, F., clipper. atrōx, savage; ferōx, wild; vēlōx, swift, adjectives. |
| -rx, -rcis | arx, F., citadel, G. Pl. rare and late; merx, F., ware, N. in old Latin sometimes mercēs or mers. |
| -ux, -ucis | Adjectives: trux, savage, Ab. -ī or -e, G. Pl. -ium; redux, returning, Ab. -ī or -e ([558]); no G. Pl. and no Ne. N. or Ac. ([430]). |
| -aux, —— | fauce, F., Ab., throat, N. faux once only and late, generally Pl. |
| -ūx, -ūcis | lūx, F. ([581]), light, Ab. sometimes -ī, no G. Pl. ([430]). |
[532]. (a.) Examples of stems in -di-, with nominative -s, genitive -dis, are:
| -ēs, -edis | Compounds of pēs, foot: compede, F., Ab., fetter, no N., G. Pl. compedium; adjectives: as, ālipēs, wing-footed, bipēs, two-legged, quadrupēs, four-footed, &c., Ab. -ī, Pl. G. -um only ([563]), Ne. N. and Ac. -ia, rare and late. |
| -ns, -ndis | Feminines: frōns, foliage; glāns, acorn; iūglāns, walnut. |
| -rs, -rdis | concors, like-minded, adjective, and other compounds of cor, Ab. -ī ([559]) Ne. Pl. N. and Ac. -ia, G. Pl. not usual: discordium, at variance, and vēcordium, frantic, once each. |
| -aus, -audis | fraus, F., deceit, G. Pl. fraudium, later fraudum. |