RhymeZone: thebaic definitions

Definitions of Thebaic:

adjective: Theban; of or pertaining to Thebes, especially in the context of the Coptic scriptures.
adjective: Of or pertaining to opium.
noun: The Sahidic dialect of the Coptic language.
noun: (archaic) An opium-based medication or tincture such as laudanum.

(Definitions from Wiktionary)