[215]. The Ablative of Source is used with the participles nātus and ortus (in poetry also with ēditus, satus, and some others), to designate parentage or station; as,—
Jove nātus, son of Jupiter;
summō locō nātus, high-born (lit. born from a very high place);
nōbilī genere ortus, born of a noble family.
1. Pronouns regularly (nouns rarely) take ex; as,
ex mē nātus, sprung from me.
2. To denote remoter descent, ortus ab, or oriundus (with or without ab), is used; as,—
ab Ulixe oriundus, descended from Ulysses.
Ablative of Agent.
[216]. The Ablative accompanied by ā (ab) is used with passive verbs to denote the personal agent; as,—
ā Caesare accūsātus est, he was arraigned by Caesar.
1. Collective nouns referring to persons, and abstract nouns when personified, may be construed as the personal agent. Thus:—