xihuitl molpia.

Headword: 
xihuitl molpia.
Principal English Translation: 

years are bundled; the completion of a period of years; most likely the 52-year cycle; but, Molina says from fifty to fifty-three years (see Molina)

Orthographic Variants: 
xiuitl molpia
Alonso de Molina: 

xiuitl molpia. termino de tiempo que tenian y contauan de cincuenta en cincuenta y trez años.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 159v. col. 2. Thanks to Joe Campbell for providing the transcription.