Ce Tecpatl.

Headword: 
Ce Tecpatl.
Principal English Translation: 

One Flint or One Flint Knife; a calendrical name

Orthographic Variants: 
cē-tecpatl
Attestations from sources in English: 

Ce tecpatl was once the calendrical name for Huitzilopochtli; in the Treatise, it was the ritual name for seeds (Atenango, between Mexico City and Acapulco, 1629)
Hernando Ruiz de Alarcón, Treatise on the Heathen Superstitions That Today Live Among the Indians Native to This New Spain, 1629, eds. and transl. J. Richard Andrews and Ross Hassig (Norman and London: University of Oklahoma Press, 1984), 221.

The year Ce Tecpatl occurs several times in the Codex Quetzalecatzin, which is held in the Library of Congress. The year dates are given in the "A-O" convention of the Mixtec culture zone.
https://www.loc.gov/resource/g4701g.ct009133/