259. Nouns of the fourth declension are either masculine or neuter.

260. Masculine nouns end in -us, neuters in -u:.  The genitive ends in -u:s.

a. Feminine by exception are domus\, _house_; manus\, hand;
and a few others.

PARADIGMS

[Transcriber’s Note: 
The “Stems” are missing in the printed book.  They have been supplied
from the inflectional table in the Appendix.]

adventus, cornu:,
m., arrival n., horn
STEMS adventu- cornu-
BASES advent- corn-

SINGULAR                  TERMINATIONS
MASC.            NEUT. 
Nom.   adventus        cornu:      -us       -u: 
Gen.   adventu:s       cornu:s    -u:s      -u:s
Dat.   adventui:  (u:)  cornu:      -ui:  (u:) -u: 
Acc.   adventum        cornu:      -um       -u: 
Abl.   adventu:         cornu:      -u:        -u: 

PLURAL
Nom.   adventu:s       cornua     -u:s      -ua
Gen.   adventuum       cornuum    -uum      -uum
Dat.   adventibus      cornibus   -ibus     -ibus
Acc.   adventu:s       cornua     -u:s      -ua
Abl.   adventibus      cornibus   -ibus     -ibus

  1.  Observe that the base is found, as in other declensions, by
  dropping the ending of the genitive singular.

  2. lacus\, _lake_, has the ending -ubus in the dative and ablative
  plural; portus\, harbor, has either -ubus or -ibus.

  3. cornu:\ is the only neuter that is in common use.

261. EXERCISES

First learn the special vocabulary, p. 293.

I. 1.  Ante adventum Caesaris veloces hostium equites acrem impetum in castra fecerunt. 2.  Continere exercitum a proelio non facile erat. 3.  Post adventum suum Caesar iussit legiones ex castris duci. 4.  Pro castris cum hostium equitatu pugnatum est. 5.  Post tempus breve equitatus trans flumen fugit ubi castra hostium posita erant. 6.  Tum victor imperator agros vastavit et vicos hostium cremavit. 7.  Castra autem non oppugnavit quia milites erant defessi et locus difficilis. 8.  Hostes non cessaverunt iacere tela, quae paucis nocuerunt. 9.  Post adversum proelium principes Gallorum legatos ad Caesarem mittere studebant, sed populo persuadere non poterant.

II. 1.  Did you see the man-of-war on the lake? 2.  I did not see it (fem.) on the lake, but I saw it in the harbor. 3.  Because of the strong wind the sailor forbade his brother to sail. 4.  Caesar didn’t make an attack on the cavalry on the right wing, did he? 5.  No, he made an attack on the left wing. 6.  Who taught your swift horse to obey? 7.  I trained my horse with my (own) hands, nor was the task difficult. 8.  He is a beautiful animal and has great strength.

LESSON XLVII

EXPRESSIONS OF PLACE :  THE DECLENSION OF DOMUS