something that has been sized up or weighed and measured with prudence and good sense (see Molina)
IPAspelling:
tɬɑjoːlwiːlli
Alonso de Molina:
tlayolhuilli. cosa tanteada y trazada, con prudencia y cordura. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 122r. col. 1. Thanks to Joe Campbell for providing the transcription.