1. Aztecan - Noun
2. Aztecan - Adjective
the Uto-Aztecan language spoken by the Aztec
Source: WordNetThe existence of /tɬ/ in Nahuatl had puzzled previous linguists and caused Sapir to reconstruct a /tɬ/ phoneme for proto-Uto-Aztecan based only on evidence from Aztecan. Source: Internet