a great deal, a lot, much (see Karttunen)
ŌMACH- a great deal / mucho (C) [(2]Cf.116v]. This is MACH inserted between antecessive Ō- and the rest of the verb complex. See Ō-, MACH. Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 178.