Possible Clues:

• From the halls of Montezuma
• From the halls of Montezuma, say
• Like Nahuatl speakers
• Like many Mexicans' forebears
• Relating to ancient Mexicans
• Nahuatl, round the bend, tasted preserve
• Like Montezuma
• Kind of calendar with 18 months
• Like some Mexican pyramids
• Like some pre-Columbian culture