LATIN DICTIONARYLexicon Latīnum
proper noun · masculinesecond declension

Aesōpus

Aesōpus m sg (genitive Aesōpī)

Meaning

  1. Aesop (Ancient Greek author famous for writing fables)

Declension

declension
formsingularplural
nominativeAesōpus—
genitiveAesōpī—
dativeAesōpō—
accusativeAesōpum—
ablativeAesōpō—
vocativeAesōpe—

Aesōpus, i, m., = Αἴσωπος.
I. Æsop, the Greek fabulist of Phrygia, in the time of Crœsus; cf. Phaedr. 5 prol. The difference between Æsopic and Libystic fables, v. under Aesopicus.—Cf. Quint. 5, 11, 19; Gell. 2, 29.—
II. A tragic actor, friend of Cicero: noster Aesopus, Cic. Fam. 7, 1; Hor. Ep. 2, 1, 82; cf. Cic. Tusc. 4, 25; id. Div. 1, 37.

Origins

Borrowed from Ancient Greek Αἴσωπος (Aísōpos).

In the Academy Smith's classical dictionaries

Biography & mythologyAesopusAesopus (Αἴσωπος), a writer of Fables, a species of composition which has been defined " analogical narratives, intended to convey some moral lesson, …

Quick answers

What does Aesōpus mean in Latin?
Aesōpus, a proper noun, means “Aesop (Ancient Greek author famous for writing fables)”.
What is the genitive of Aesōpus?
The genitive singular is Aesōpī. Aesōpus is masculine, second declension.