poxcahui (Mdz10v)
This simplex glyph for the place name Poxcauhtlan is here doubling as an entry for the verb poxcahui (to become moldy). It appears to be a flower on its side with many spots of different colors, yellow, red, and turquoise.
Stephanie Wood
Differently colored molds are known to morphology, and perhaps the Nahuas had knowledge of the wide range of molds. For example, aspergillus can be red, and aspergillus flavus is a mold yellow-green in color and gold or reddish-brown underneath. Green-black molds are especially toxic.
Stephanie Wood
c. 1541, but by 1553 at the latest
Stephanie Wood
become moldy, volverse mohoso, descomponerse
poxcahui, to get moldy or dank, https://nahuatl.wired-humanities.org/content/poxcahui
volverse mohoso
Stephanie Wood
Codex Mendoza, folio 10 verso, https://digital.bodleian.ox.ac.uk/objects/2fea788e-2aa2-4f08-b6d9-648c00..., image 31 of 188.
Original manuscript is held by the Bodleian Libraries, University of Oxford, MS. Arch. Selden. A. 1; used here with the UK Creative Commons, “Attribution-NonCommercial-ShareAlike 3.0 License” (CC-BY-NC-SA 3.0)