pipiyolin.

Headword: 
pipiyolin.
Principal English Translation: 

a wild bee, a type of honey bee (see Molina)

Orthographic Variants: 
pipiyolli, pipiyoli, pipiolin
Alonso de Molina: 

abeja montesa de miel. pipiyoli.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1555, part 1, Spanish to Nahuatl, f. 1r.

pipiyolin. aueja montesa.
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.

themes: 
Animals, Bugs, Insects, Reptiles, Fish, etc.