macuilpohuallatamachiuhtli.

Headword: 
macuilpohuallatamachiuhtli.
Principal English Translation: 

a quintal, a hundred-weight (one hundred pounds or 46 kilos); or, a fifth part of one hundred (see Molina and definitions of quintal)

Orthographic Variants: 
macuilpoallatamachiuhtli
Alonso de Molina: 

macuilpoallatamachiuhtli. un quintal.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 51r. col. 2. Thanks to Joe Campbell for providing the transcription.