So, crazy, but some of us have theorized that the Matari speak Spanish...
A random corpie > Panama City, Panama, is 40% native/Spanish mixed origin (Starkmanir), 15% Afro-Antillean (Brutor), 15% East Asian (Vherokior), 15% European mix and Jewish (Sebiestor), and 10% North American (Thukker). There's my proposal
A similar language, influenced by Amarrian ( Spanish has a lot of Arabic loanwords ) spoken by a diverse group of people, all over the modern world, of a wide range of ethnicity... no, I dont literally mean "spanish" but, if people want a language most are familiar with as a background... why not?
No sé para seguro, pero pienso que lo es tan logica como algúna otra lengua?