Where does “मेक्सिको” come from?

मेक्सिको (Hindi) comes from English Mexico, from Spanish México, from Classical Nahuatl Mēxihco — Mexico.

Ancestry of “मेक्सिको”, step by step

Step	Language	Word	Meaning
1	English	Mexico	—
2	Spanish	México	Mexico
3	Classical Nahuatl	Mēxihco	Mexico