by fours, four apiece (see Karttunen)
NĀNĀHU(I) by fours, four apiece / cuatro en cuatro (C) [(4)Cf.19v,107r,120r]. M has nanauin with the same sense, redup. NĀHU(I) Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 159.