not just a little, but rather much, many; abundant (see Karttunen); interestingly, the IDIEZ entry for ahachi refers to small quantities.
IPAspelling:
ɑhɑtʃi
Frances Karttunen:
AHACHI not a little, much / abundante, hay muchos (T)[(2)Tp.221]. T gives this bound with ZAN, ZANAHACHI. It is possible that this is a case of distributive reduplication rather than negation in view of the /K003/ ‘more, every much’ sense of ACHI in some other constructions. See AH-, ACHI. Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 4.