Principal English Translation: 

a place name, one of the boundaries of the Nonohualca of Tollan (Tula)
Historia Tolteca-Chichimeca, 4v. Taken from the image of the folio published in Dana Leibsohn, Script and Glyph: Pre-Hispanic History, Colonial Bookmaking, and the Historia Tolteca-Chichimeca (Washington D.C.: Dumbarton Oaks, 2009), 65. Paleography and regularization of this toponym by Stephanie Wood.

Orthographic Variants: 
Quevetzillatl, Queuetzillatl
Attestations from sources in English: 

Paul Kirchoff (1976:76) gives Queuetzillatl.