tlatziuiliztli. pereza. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 143r. col. 2. Thanks to Joe Campbell for providing the transcription.
Frances Karttunen:
TLATZIHUILIZ-TLI laziness, sloth, apathy / pereza (M) [(1)Tp.237, (2)Zp.60,217]. See TLATZIHU(I). Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 302.