Chalmecacihuatl.

Headword: 
Chalmecacihuatl.
Principal English Translation: 

a divinity, divine or sacred force; "Woman of the Chalmeca (inhabitants of Chalman, today called Chalma)" -- possibly a "sister" of the merchant divine force called Yacateuctli; one of five religious figures impersonated by slaves offered by merchants as sacrificial victims
Fray Bernardino de Sahagún, Primeros Memoriales, ed. Thelma D. Sullivan, et al. (Norman: University of Oklahoma Press, 1997), 112.

Attestations from sources in English: 

Chalmecatl is the name given for an "idol" hidden in Tecanalcanco according to a witness in an inquisitorial proceeding in Culhuacan of December 1539.
David Tavárez, The Invisible War: Indigenous Devotions, Discipline, and Dissent in Colonial Mexico (Stanford: Stanford University Press, 2011), 40.

"Chiconquiauitl, or Chalmecaciuatl" was a goddess worshipped by the merchants who also worshipped Yacateuctli. According to Seler, she was "a goddess of water and the earth." (central Mexico, sixteenth century)
Fr. Bernardino de Sahagún, Florentine Codex: General History of the Things of New Spain; Book 1 -- The Gods; No. 14, Part 2, eds. and transl. Arthur J. O. Anderson and Charles E. Dibble (Santa Fe and Salt Lake City: School of American Research and the University of Utah, 1950), 19.