to take root, settle down (see Karttunen); or, to base a talk or a sermon on some written authority (see Molina)
IPAspelling:
nelwɑyoːtiɑː
Alonso de Molina:
nelhuayotia. nino. (pret. oninonelhuayoti.) arraigar o echar rayzes.
nelhuayotia. nitla. (pret. onitlanelhuayoti.) fundar platica o sermon sobre alguna auctoridad de escriptura. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 66v. col. 1. Thanks to Joe Campbell for providing the transcription.
Frances Karttunen:
NELHUAYŌTIĀ vrefl.vt to take root, settle down; to base a discourse on a particular authority / arraiga o echar raices (M), fundar platica o sermón sobre alguna autoridad de escritura (M) See NELHUAYŌ-TL. Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 164.