tepitztlacuahualiztli.

Headword: 
tepitztlacuahualiztli.
Principal English Translation: 

great hardness, or hardening (see Molina)

Orthographic Variants: 
tepitztlaquaualiztli, tepitztlaquahualiztli
Alonso de Molina: 

tepitztlaquaualiztli. dureza grande, o endurecimiento.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 103r. col. 2. Thanks to Joe Campbell for providing the transcription.