Il-Malti to be precise. Il- means "the" and changes its meaning to that of the language. Malti alone would mean a Maltese person.

Source: I'm also Maltese.

The "Il" in Il-Malti is like "al" in Arabic, which Maltese is closely related to as was pointed out above.

Arabic (language): al-‘arabiyyah (الْعَرَبِيَّة).