It's important to note that "non" itself isn't a stand-alone word in Latin. It's used as a prefix attached to other words to negate their meaning, similar to how "un-" or "in-" work in English.
Here are some examples:
* non-existent (Latin: *non* + *existens*)
* non-violent (Latin: *non* + *violentus*)
* non-stop (Latin: *non* + *stop*)
While Latin is the source of "non", it's now used as a prefix in many other languages, including English, French, Spanish, Italian, and many others.