xocpalmachiyotl.

Headword: 
xocpalmachiyotl.
Principal English Translation: 

a human or animal footprint; evidence or the mark of a foot (see Molina); footprints were very prevalent on pictorial manuscripts to show paths and roads, and they appear in Aztec or Nahua hieroglyphs, sometimes to suggest the locative suffix -pan (SW)

Orthographic Variants: 
xocpalmachiotl
Alonso de Molina: 

xocpalmachiotl. pisada o patada.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 160v. col. 2. Thanks to Joe Campbell for providing the transcription.