Lewis Short
(adjective) : Aesōpĭcus, a, um, Aesopus
* Aesopic. Acc. to Isid. Orig. 1, 39, fables are either Aesopic or Libystic (from Libys, a writer of fables, mentioned by Hesych.); Aesopic, when brute beasts or things inanimate are represented as discoursing together; Libystic. when the discourse is between men and brutes.
Charlton T. Lewis, Charles Short, A Latin Dictionary