See an image that represents petlacalli in the Visual Lexicon of Aztec Hieroglyphs, ed. Stephanie Wood (Eugene, Ore.: Wired Humanities, 2020-present).
petlacalli = box, cage ('mat house')
Michel Launey, An Introduction to Classical Nahuatl, translated and adapted by Christopher MacKay (Cambridge: Cambridge University Press, 2011), 169.
Toptli, petlacalli. Inin tlatolli itech mitoaya: in aquin uel quipia in ichtacatlatolli, piallatolli = A basket, a coffer. These words were said about someone who could keep a secret, who was close-mouthed.
Thelma D. Sullivan, "Nahuatl Proverbs, Conundrums, and Metaphors, Collected by Sahagún," Estudios de Cultura Náhuatl 4 (1963), 150–151.
anoҫo tecomjc, tecaxic, tetopco, tepetlacalco timaiaviz: tocontzacutiaz, tontetzotzonaloz = Or when thou wilt remove from one's olla, one's bowl, one's coffer, one's reed chest, thou wilt be imprisoned, thou wilt be stoned (central Mexico, sixteenth century)
Fr. Bernardino de Sahagún, Florentine Codex: General History of the Things of New Spain; Book 6 -- Rhetoric and Moral Philosophy, No. 14, Part 7, eds. and transl. Arthur J. O. Anderson and Charles E. Dibble (Santa Fe and Salt Lake City: School of American Research and the University of Utah, 1961), 70.
mjxpan tlapovi in toptli, petlacalli = Before thee openeth the coffer, the reed chest (central Mexico, sixteenth century)
Fr. Bernardino de Sahagún, Florentine Codex: General History of the Things of New Spain; Book 6 -- Rhetoric and Moral Philosophy, No. 14, Part 7, eds. and transl. Arthur J. O. Anderson and Charles E. Dibble (Santa Fe and Salt Lake City: School of American Research and the University of Utah, 1961), 80.
njcan otocontlapoque in toptli, in petlacalli, ovalqujz, ovalchaiaoac = Here we have opened the coffer, the reed chest. The incomparable hath come forth, hath spread out (central Mexico, sixteenth century)
Fr. Bernardino de Sahagún, Florentine Codex: General History of the Things of New Spain; Book 6 -- Rhetoric and Moral Philosophy, No. 14, Part 7, eds. and transl. Arthur J. O. Anderson and Charles E. Dibble (Santa Fe and Salt Lake City: School of American Research and the University of Utah, 1961), 191.