something a little bit long (see Molina; diminutive of anqui)
IPAspelling:
ɑnkɑːtoːntɬi
Alonso de Molina:
ancatontli. cosa larguilla. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 6r. col. 1. Thanks to Joe Campbell for providing the transcription.