tecozahuitl.

See an image that represents tecozahuitl in the Visual Lexicon of Aztec Hieroglyphs, ed. Stephanie Wood (Eugene, Ore.: Wired Humanities, 2020-present).

tecozahuitl..."in jtoca itech qujztica tetl, ioan coçauhquj. q. n. tetl coztic, coztic tetl moteci, tlapalonj: tlacujlolonj tlaquauhnextilonj:" = "Its name comes from tetl [stone] and coçauhqui [yellow]; that is, it is a yellow stone; yellow in the form of a stone. It is ground up. It is a dyeing medium, a painting medium, a means of making things especially brilliant."
Sahagún, Bernardino de, Antonio Valeriano, Alonso Vegerano, Martín Jacobita, Pedro de San Buenaventura, Diego de Grado, Bonifacio Maximiliano, Mateo Severino, et al. Historia general de las cosas de Nueva España (Florentine Codex), Ms. Mediceo Palatino 218–20, Biblioteca Medicea Laurenziana, Florence, MiBACT, 1577. Available at Digital Florentine Codex/Códice Florentino Digital, edited by Kim N. Richter, Alicia Maria Houtrouw, Kevin Terraciano, Jeanette Peterson, Diana Magaloni, and Lisa Sousa, bk. 11, fol. 219r. Los Angeles: Getty Research Institute, 2023. https://florentinecodex.getty.edu/en/book/11/folio/219r?spTexts=&nhTexts= . Accessed 3 January 2026.

tecozauhuitl = yellow ochre
Frederick Starr, Aztec Place-names (1920), 11.