Ezhuahuacatl.

Headword: 
Ezhuahuacatl.
Principal English Translation: 

a title, "Raining Blood" or "Shedder of Blood," an executioner; an advisor to the supreme leader of the Aztecs; an officer of the court, appearing in the Codex Mendoza (lamina 66, figure 10) and mentioned in Sahagún (Book 2, 106; see also Book 8)

Orthographic Variants: 
Ezguaguacatl, Ezcuacuacatl, iezoaoacatl, Ezuauacatl
Attestations from sources in English: 

Thirteen judges named as working with the highest ruler on the most difficult legal cases: Ciuacoatl (Cihuacoatl), Tlacochcalcatl, Uitznauatlailotlac (Huitznahuatlailotlac), Ticociauacatl (Ticociahuacatl), Pochtecatlailotlac, Ezuauacatl (Ecihuahuacatl), Mexicatl Tezcacoacatl, Acatliacapanecatl, Milnauatl (Milnahuatl), Atlauhcatl, Ticociauacatl (Ticociahuacatl), Ciuatecpanecatl (Cihuatecpanecatl), and Tequixquinaoacatl (Tequixquinahuacatl). (central Mexico, sixteenth century)
Fr. Bernardino de Sahagún, Florentine Codex: General History of the Things of New Spain; Book 8 -- Kings and Lords, no. 14, Part IX, 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, 1951), 55.