a bird's egg (see Molina; translation here to English by Stephanie Wood)
IPAspelling:
toːtoːtetɬ
Alonso de Molina:
tototetl. hueuo de paxaro. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 151r. col. 1. Thanks to Joe Campbell for providing the transcription.