to get on one's knees, to curl up, to crouch (see Molina)
IPAspelling:
kototstɬɑːliɑː
Alonso de Molina:
cototztlalia. nino. (pret. oninocototztlali.) ponerse de coclillas, encogerse o encaramarse. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 24v. col. 2. Thanks to Joe Campbell for providing the transcription.
Frances Karttunen:
COTOTZTLĀLIĀ vrefl, to squat down / ponerse de cuclillas, encogerse o encaramarse (M),[(3)Tp.146]. This is related by metathesis to synonymous TOCOTZTLĀLIĀ. See COTOTZOĀ, TLĀLIĀ. COTOTZTLĀLĪLŌ nonact. COTOTZTLĀLIĀ Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 42.