aquetza.

Headword: 
aquetza.
Principal English Translation: 

to raise one's head; to rear up; to be upside down (see Karttunen); or, to make cocoa (see Molina)

Orthographic Variants: 
ahquetza
IPAspelling: 
ɑhketsɑ
Alonso de Molina: 

aquetza. n. (pret. onaquetz.) leuantar o alzar la cabeza, o hazer cacao.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 7r. col. 2. Thanks to Joe Campbell for providing the transcription.

Frances Karttunen: 

AHQUETZ(A) to raise one´s head; to rear up; to be upside down / levantar o alzar la cabeza (M), se lo empina (T), boca arriba (T) M combines the definitions of AHQUETZ(A) with ĀQUETZ(A) ´to beat liquid (such as chocolate) into a foam.´ In principle, the sense of ´to lift up the head´ could be derived from Ā-TL´s ´crown of the head´ sense, but C specifically contrasts AHQUETZ(A) with ĀQUETZ(A). See AHCO, QUETZ(A).

AHQUECHILIĀ applic. AHQUETZ(A)
Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 7.