LATIN DICTIONARYLexicon Latīnum
adjectivefirst/second-declension adjective

mē̆xicānus

mē̆xicānus (feminine mē̆xicāna, neuter mē̆xicānum)
Classical[meːk.sɪˈkaː.nʊs]Ecclesiastical[meɡ.ziˈkaː.nus]

Meaning

  1. New LatinadjectiveMexican; from or pertaining to Mexico
    Foederātī Statūs Mē̆xicānīUnited Mexican States
    […]flos Mexicanus flore fistuloso[…] Mexican flower with fisulose blooms1669, Roberto Morison, Hortus Regius Blesensis, page 201:

Declension

singular
formmasculinefeminineneuter
nominativemē̆xicānusmē̆xicānamē̆xicānum
genitivemē̆xicānīmē̆xicānaemē̆xicānī
dativemē̆xicānōmē̆xicānaemē̆xicānō
accusativemē̆xicānummē̆xicānammē̆xicānum
ablativemē̆xicānōmē̆xicānāmē̆xicānō
vocativemē̆xicānemē̆xicānamē̆xicānum
plural
formmasculinefeminineneuter
nominativemē̆xicānīmē̆xicānaemē̆xicāna
genitivemē̆xicānōrummē̆xicānārummē̆xicānōrum
dativemē̆xicānīsmē̆xicānīsmē̆xicānīs
accusativemē̆xicānōsmē̆xicānāsmē̆xicāna
ablativemē̆xicānīsmē̆xicānīsmē̆xicānīs
vocativemē̆xicānīmē̆xicānaemē̆xicāna

Origins

Borrowed from Mexican Spanish mexicano, from Classical Nahuatl Mēxihco. By surface analysis, Mē̆xicum + -ānus.

Quick answers

What does mē̆xicānus mean in Latin?
mē̆xicānus, a adjective, means “Mexican; from or pertaining to Mexico”.
How do you pronounce mē̆xicānus?
In classical Latin, [meːk.sɪˈkaː.nʊs]; in ecclesiastical (church) Latin, [meɡ.ziˈkaː.nus].