one who is anguished; a uselessly wise person (see Molina)
IPAspelling:
neːntɬɑmɑtini
Alonso de Molina:
nentlamatini. angustiado. &c. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 68v. col. 2. Thanks to Joe Campbell for providing the transcription.