CĀCALĀCH-IN pl: -TIN cockroach / cucaracha (T) [(2)Tp.117]. X has CALĀCH-IN, pl:-MEH, apparently an apocopated form, with the same sense. CĀCALĀCH-IN has a different vowel length pattern from the verb CACALACA ‘to rattle’ and the associated noun CACALACH-TLI, which might otherwise be taken to be related in sense. Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 19.