§ 40. For the declension of Comparative Adjectives see § 34.
Plūs more is thus declined:
| Sing. | Plur. | ||
| Neuter only. | M. F. | N. | |
| N.V.A. | plūs | plūr-ēs | plūr-ă |
| G. | plūr-ĭs | plūr-ĭum | |
| D.A. | — | plūr-ĭbŭs | |
The Sing. is used only as a Neuter Noun.
Adverbs formed from Adjectives.
§ 41. Latin Adverbs are formed from Adjectives as follows:
(1) By adding the termination -ē to the base of Adjectives of the First Class; as, tăcĭt-ŭs silent, tăcĭt-ē silently; mĭsĕr, base mĭsĕr-, wretched, mĭsĕr-ē wretchedly; pĭgĕr, base pĭgr-, slow, pĭgr-ē slowly.
But măl-ŭs bad, mal-ĕ badly; bŏn-ŭs good, bĕnĕ well.
A few Adjectives in -ŭs form their Adverbs in -ō instead of -ē: thus, tūt-ŭs safe, tūt-ō safely; fals-ŭs false, fals-ō falsely.
(2) By adding the termination -ĭtĕr or -tĕr to the base of Adjectives of the Second Class.
-ĭtĕr is used if the Adj. ends in -ĭs, -ĕr, or -x (base ending in -c).
As, fort-ĭs brave, fort-ĭtĕr bravely ; ācĕr, base ācr-, keen, ācr-ĭtĕr keenly; fĕrōx wild, base fĕrōc-, fĕrōc-ĭtĕr wildly.
But audāx bold, drops the i and makes audāc-tĕr boldly.
