inic caxtollamantli.

Headword: 
inic caxtollamantli.
Principal English Translation: 

fifteenth thing or fifteenth part

Orthographic Variants: 
inic caxtullamantli
Alonso de Molina: 

inic caxtullamantli. la quinzena cosa o parte.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 38v. col. 2. Thanks to Joe Campbell for providing the transcription.

Attestations from sources in English: 

Combines caxtolli (fifteen) and tlamantli (thing, item, part), plus inic, which gives us the ordinal.

themes: 
Numbers, Math