Here are some possibilities depending on the context and level of formality:
* "In tlahtolli": This is a more formal greeting, literally meaning "in the word" and can be used in formal situations.
* "In mocuepa": This is a more informal greeting, meaning "good day" or "how are you?"
* "Te in itechpa": This means "I see you" and can be used as a greeting, especially when you see someone you haven't seen in a while.
Important to Note:
* Nahuatl is not a single language, but a family of languages. There are variations in pronunciation and vocabulary depending on the specific dialect.
* Aztec culture has been heavily influenced by Spanish colonialism. While Nahuatl is still spoken by some communities in Mexico, it has been largely replaced by Spanish.
So, while there are options for saying hello in Nahuatl, it's not as simple as a single word like "hello" in English. The best choice will depend on the context and your level of fluency.