neca. helo alli, o hela alli, o alli esta. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 064r. col. 2. Thanks to Joe Campbell for providing the transcription.
Frances Karttunen:
NĒCAH to be there (distant) [(5)TP.167]. This is a compound of the deictic particle NĒ and the verb CĀ. It appears to have been lexicalized to function as a demonstrative particle, but its plural retains the verbal plural form of -CĀ, -CATEH. See NĒ, the verb CĀ. Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 160.