eilhuitl.

Headword: 
eilhuitl.
Principal English Translation: 

three days (see Molina)

Orthographic Variants: 
yeilhuitl, yei ilhuitl, yey ilhuitl, eyilhuitl
Alonso de Molina: 

eilhuitl. tres dias.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 28r. col. 2. Thanks to Joe Campbell for providing the transcription.

Attestations from sources in English: 

ēyilhuitl = three days
Michel Launey, An Introduction to Classical Nahuatl, translated and adapted by Christopher MacKay (Cambridge: Cambridge University Press, 2011), 63.