to clean something, such as well, rice, chickpeas, or something full of straw or manure (see Molina)
IPAspelling:
tɬɑsoːlkwihkwiːliɑ
Alonso de Molina:
tlazolcuicuilia. nitla. (pret. onitlatlazolcuicuili.) alimpiar alguna cosa, assi como, pozo, arroz, garuanzos, o cosa llena de pajas o de estiercol. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 118v. col. 1. Thanks to Joe Campbell for providing the transcription.