a toilet, a commode, a basin for such things (see Molina)
IPAspelling:
ɑːʃiːʃkoːmitɬ
Alonso de Molina:
axixcomitl. seruidor, o bacin. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 10r. col. 2. Thanks to Joe Campbell for providing the transcription.