iyaquic. de punta. s. cayo. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 36v. col. 2. Thanks to Joe Campbell for providing the transcription.
Attestations from sources in English:
telpochiiaqui = a leading youth (drawing from telpoch, youth, and yacatl, nose?) Florentine Codex, Book 8, 21st chapter.