361. Adverbs derived from adjectives have as their comparative the
accusative singular neuter of the comparative adjective; the superlative
is formed like that of the adjective, but ends in #-ē#: as,
altē, _on high_, altius, altissimē.
ācriter, _sharply_, ācrius, ācerrimē.
facile, _easily_, facilius, facillimē.
362. An older superlative ending, #-ēd# for #-ē#, occurs in an
inscription of 186 B.C.: FACILVMED, i.e. #facillimē#. A few adverbs have
superlatives in #-ō# or #-um#: as, #meritissimō#, _most deservedly_;
#prīmō#, _at first_, #prīmum#, _first_; #postrēmō#, _at last_,
#postrēmum#, _for the last time_.
363. If the comparison of the adjective has peculiarities, they are
retained in the adverb likewise: as, #bene#, _well_, #melius#, #optimē#;
#male#, _ill_, #peius#, #pessimē#; #multum#, _much_, #plūs#, #plūrimum#;
#mātūrē#, _betimes_, #mātūrius#, #mātūrissimē# (Cic., Plin.), or
#mātūrrimē# (Cic., Caes., Sall., Tac.). #ōcius#, _swifter_, no positive,
#ōcissimē#. #minus#, _less_, is formed by the nominal suffix #-es-#
(236), from √#min-# (#minuō#); for #magis#, _more_, see 135, 2. In
poetry #magis# sometimes becomes #mage#, as if neuter of an adjective in
#-i-#.
364. A few adverbs not derived from adjectives are compared: as,
#diū#, _long_, #diūtius#, #diūtissimē#; #saepe#, _often_, #saepius#,
#saepissimē#; #nūper#, _lately_, no comparative, #nūperrimē#; #secus#,
_otherwise_, #sētius#, _the less_; #temperī#, _betimes_, #temperius#,
_earlier_, no superlative.
[Erratum:
363 ... #ōcius#, _swifter_, no positive; #ōcissimē#.
positive.]
(B.) FORMATION OF DENOMINATIVE VERBS.
365. Denominative verb stems have present infinitives in #-āre#, #-ēre#,
or #-īre# (#-ārī#, #-ērī#, or #-īrī#), and are formed from noun stems of
all endings: as,