festivals or markets that take place every twenty days (see Molina)
Orthographic Variants:
cempoal tianquiztli, cempohual tianquiztli
Alonso de Molina:
cempoal tianquiztli. ferias o mercados de veinte en veinte dias. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 16v. col. 2. Thanks to Joe Campbell for providing the transcription.