Punic, the language of the ancient Carthaginians, is a Semitic language closely related to Phoenician. Unfortunately, much of the Punic vocabulary and grammar is not well-documented due to the limited extent of historical records. Consequently, providing a direct translation for "outsider" in Punic is challenging.
If the concept of "outsider" is important in a specific context (like a stranger, foreigner, or someone not belonging to a particular group), I would recommend looking at scholarly works on ancient Semitic languages or consulting with an expert in Punic. They could provide more accurate insights and potential translations in the context you need.