to temper oneself in eating (see Molina), to not overeat, not be a glutton
IPAspelling:
ihtimɑlwiɑ
Alonso de Molina:
itimalhuia. nin. (pret. oninitimalhui.) templarse enel comer. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 42v. col. 2. Thanks to Joe Campbell for providing the transcription.