144. The infinitive endings _-āre_, _-ēre_, _-īre_ regularly became
-ar, -ẹr, -ir; _-ĕre_ became -re or -er: see § 48, (1) and § 52, (1).
Ex.: _amāre_ ＞ amár, _vĭdēre_ ＞ vezẹr, _audīre_ ＞ auzir; _tŏllĕre_
＞ tǫlre, _nascĕre_ ＞ náisser, _dīcere_ ＞ dire dízer. For shifts of
conjugation, see § 137.
1. The fourth conjugation verbs _enantir_, _gauzir_, _grazir_,
_murir_, _servir_ sometimes took a final _e_ by the analogy of
_devire_ (＜ _divīdĕre_), _dire_, _rire_. On the other hand,
_dire_ occasionally lost its _-e_ by the analogy of the fourth
conjugation. _Lire_ for _leire_ (＜ _lĕgĕre_) is probably
French, and _lir_ is to be explained like _dir_.
2. _Far_ beside _faire_ doubtless comes from ✱_fare_ =
_facĕre_: see § 137, (1). _Trar_ beside _traire_ (＜ ✱_tragĕre_)
follows _far_.
3. _Escriure_ (＜ _scrībĕre_) sometimes became _escrire_ through
the analogy of _dire_.
4. Some verbs that passed from the second to the third
conjugation preserved the old infinitive as a noun: _debēre_ ＞
_deure_ _devér_, _placēre_ ＞ _plaire_ _plazér_.
145. The endings _-antem_ _-ando_, _-ĕntem_ _-ĕndo_ regularly became
-an or -ant, -en or -ent: § 76, (2). See § 143, (1). The endings
_-iĕntem_ _-iĕndo_ lost their i in Vulgar Latin (§ 40, 1), and were
thus reduced to _-entem_ _-endo_. Ex.: _amantem_ _amando_ ＞ amán
(or amánt), _vidĕntem_ _vidĕndo_ ＞ vezén (or vezént), _credĕntem_
_credĕndo_ ＞ crezén (or crezént); _sapiĕntem_ _sapiĕndo_ ＞ ✱_sapĕntem_
✱_sapĕndo_ ＞ sabén (or sabént), _partiĕntem_ _partiĕndo_ ＞ ✱_partentem_
✱_partendo_ ＞ partén (or partént). Fourth conjugation verbs which
adopted the inchoative -sc- (§ 138), generally introduced it into the
present participle and the gerund: florir, florissẹn. Cf. § 155. For
the declension of the present participle, see § 101, (3).