The Allen and Greenough is still under construction;
so some links may not work quite the way you would expect.
340. The Vocative is the case of direct address: -
- Tiberíne pater, té,
sáncte, precor (Liv. ii. 10), 0 father Tiber, thee, holy
one, I pray.
- res omnis mihi técum erit,
Hortansí (Verr. i. 33), my whole attention will be devoted
to you, Hortensius.
a. A noun in the nominative in apposition
with the subject of the imperative mood is sometimes used instead of the
- audí tú, populus
Albánus (Liv. i. 24), hear, thou people of Alba.
b. The vocative of an adjective is
sometimes used in poetry instead of the nominative, where the verb is in
the second person: -
- quó moritúre ruis
(Aen. x. 811), whither art thou rushing to thy doom ?
- cénsórem trabeáte
salútás (Pers. iii. 29), robed you salute the
c. The vocative macte is used as a
predicate in the phrase macte est=o (virt=ute), success attend your
- iubérem té macte
virtúte esse (Liv. ii. 12), I should bid you go on and
prosper in your valor.
- macte nová virtúte
puer (Aen. ix. 641), success attend your valor, boy!
NOTE: As the original quantity of the final e in macte is not
determinable, it may be that the word was an adverb, as in bene est and the like.