tlalmahuiltia.

Headword: 
tlalmahuiltia.
Principal English Translation: 

for a child to play with dirt, making little mounds, etc.; and from there comes a metaphor referring to an incipient man who behaves like a child, doing foolish things (see Molina)

Orthographic Variants: 
tlalmauiltia
IPAspelling: 
tɬɑːlmɑːwiːltiɑ
Alonso de Molina: 

tlalmauiltia. ni. (pret. onitlalmauilti.) jugar el niño conla tierra, haziendo montocillos della. &c. y tomase metaphorice. por hazer niñerias, locuras y necesidades el hombre insipiente.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 124r. col. 2. Thanks to Joe Campbell for providing the transcription.