Which work contains the only extant passages of Carthaginian language?

The work that contains the only extant passages of Carthaginian language is "Poenulus," a comedy written by the Roman playwright Plautus. "Poenulus," which translates to "The Little Carthaginian," features characters who are of Carthaginian origin, allowing Plautus to incorporate actual phrases in the Carthaginian language to enhance the authenticity of his characters and the setting. This inclusion is significant as it provides valuable insight into the linguistic elements of an ancient language that has otherwise largely been lost to history.

The other works listed do not contain Carthaginian language. "Amphitryon" is based on mythology and Greek sources, focusing on the story of Amphitryon and Zeus. "Epidicus" and "Menaechmi" also do not delve into Carthaginian culture or language, instead presenting various comedic situations and themes that are distinctly Roman or Greek in origin. Thus, "Poenulus" stands out as the sole example of a Roman theatrical work featuring this rare linguistic inclusion.