chicome (Mdz7v)
This notational sign has been carved from the compound glyph for the place name, Chiconquiyauhco. The first element in the place name, chicon- is the combining form for the number chicome, seven (which is five, chico-, plus two, ome. The number seven is shown as a series of round black dots four up and four to the left, with one dot shared at the corner (a right angle), for a total of seven.
Stephanie Wood
It is interesting that this arrangement of the dots representing ones is not 5 + 2; rather, the arrangement reads as four down and four across, retaining a symmetrical nature and perhaps showing the cultural preference for fours. Various date glyphs and notations from the Codex Mendoza show five ones across the top and an additional number of ones down the right side. (See below for an example.) But we do have another example of seven (with similar, intersecting fours) that comes from the Codex Quetzalecatzin--also, below.
Stephanie Wood
c. 1541, but by 1553 at the latest
Stephanie Wood
chicome, seven, https://nahuatl.wired-humanities.org/content/chicome
chico>, five in combined numbers, https://nahuatl.wired-humanities.org/content/chico
ome, two, https://nahuatl.wired-humanities.org/content/ome
seven
siete
Stephanie Wood
Codex Mendoza, folio 7 verso, https://digital.bodleian.ox.ac.uk/objects/2fea788e-2aa2-4f08-b6d9-648c00..., image 25, 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).