macacapatza.

Headword: 
macacapatza.
Principal English Translation: 

to clap, to applaud (see Molina and Karttunen)

IPAspelling: 
mɑːkɑkɑpɑtsɑ
Alonso de Molina: 

macacapatza. nino. dar palmadas.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 50r. col. 1. Thanks to Joe Campbell for providing the transcription.

Frances Karttunen: 

MĀCACAPATZ(A) vrefl to clap, applaud / dar palmadas (M) [(1)Cf.74r]. See MĀ(I)-TL, CACAPATZ(A).
Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 126.