Transaltion

[Galen Brokaw]

One possibility for square is "nauhcampa nacace". The "nauhcampa" is
composed of nahui meaning four and campa as a generic locative. The
nacace is made up of nacaztli meaning "ears" with a metaphoric meaning
of "corners" and "e" which is a suffix refering to one who owns or
possesses. So, literally, the phrase means "one (or something) that
possesses ears/corners in four places."
In a sixteenth century document, I have also seen square referred to as
"nauhcan ixtin" literally meaning something like "faces in four places".

Galen