This is the 6578th most frequent Swedish word.
mexicos
"Mexicos" is not a standard Swedish word; it may be a misspelling or a reference to "Mexico’s" in Swedish.
Here, 'Mexicos' is in the possessive form, indicating ownership (the capital of Mexico).
Mexicos huvudstad är Mexico City.
Mexico's capital is Mexico City.
In this sentence, 'Mexicos' is also possessive, describing an attribute (history) belonging to Mexico.
Jag har precis läst en artikel om Mexicos historia.
I have just read an article about Mexico's history.
Again, 'Mexicos' is possessive, showing the climate belonging to Mexico.