teuctli (Mdz5v)
This element standing for teuctli or tecuhtli (two spellings of the word for high noble, lord) has been carved from the compound sign for the place name, Tecpan. It is a profile view (facing left) of a turquoise diadem or crown, the xiuhhuitzolli, with a point at the top and a red (probably leather) tie that goes around the back of the head.
Stephanie Wood
This turquoise diadem was actually called the xihuitzolli (spelled variously) or xiuhtzontli, but it was a symbol for the position of teuctli (also spelled tecuhtli), for it was worn by high nobles who were leaders and residents of a teccalli (lordly house). Thus, the diadem is a logogram, and does not provide a phonetic reading. The red tie, possibly made of dyed leather, has a knot that is shaped much like the one on the maxtlatl) (loincloth).
Stephanie Wood
c. 1541, but by 1553 at the latest
Stephanie Wood
crowns, diadems, diademas, señores, teuctli

teuc(tli), lord, high noble, https://nahuatl.wired-humanities.org/content/teuctli
xiuhhuitzo(li), turquoise diadem, https://nahuatl.wired-humanities.org/content/xiuhhuitzolli
lord
el caballero, el principal
Alonso de Molina
Codex Mendoza, folio 05 verso, https://digital.bodleian.ox.ac.uk/objects/2fea788e-2aa2-4f08-b6d9-648c00..., image 21 of 188.
The Bodleian Libraries, University of Oxford, hold the original manuscript, the MS. Arch. Selden. A. 1. This image is published here under the UK Creative Commons, “Attribution-NonCommercial-ShareAlike 3.0 License” (CC-BY-NC-SA 3.0).