to be dark because of heavy clouds (see Karttunen)
IPAspelling:
miʃtɬɑyowɑ
Frances Karttunen:
MIXTLAYOHUA to be dark because of heavy clouds / medio se obscurede por estar muy nublado (T) [(1)Tp. 141]. See MIX-TLI, TLAYOHUA. Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 149.