What is the latin based equivalent of greek

There isn't a single, perfect Latin-based equivalent to "Greek." The best translation depends on the context. Here are a few options:

* Graecus/Graeca: This is the most straightforward translation, referring directly to the people or things of Greece. "Graecus" is masculine, "Graeca" is feminine.

* Hellenicus/Hellenica: This refers to the Hellenistic culture and civilization, often considered a more refined or encompassing term than simply "Greek." "Hellenicus" is masculine, "Hellenica" is feminine.

The choice depends on nuance. If you're talking about the language, "lingua Graeca" (Greek language) is appropriate. If referring to the people, "Graeci" (Greeks) works well. For the culture or civilization, "Hellenisticus" might be a better fit.