pipillotl. niñeria. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 82r. col. 2. Thanks to Joe Campbell for providing the transcription.
Frances Karttunen:
PĪPILLŌ-TL childishness / niñería (M) [(1)Bf.Iv]. See PILLŌ-TL, -PIL. Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 196.