exihuitl.

Headword: 
exihuitl.
Principal English Translation: 

three years (see Molina)

Orthographic Variants: 
exiuitl, yeixihuitl, yeixiuitl, eyixihuitl, eixihuitl
IPAspelling: 
eːʃiwitɬ
Alonso de Molina: 

exiuitl. tres años.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 29v. col. 2. Thanks to Joe Campbell for providing the transcription.

Attestations from sources in English: 

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

Attestations from sources in Spanish: 

exihuitl in tlatocat = tres años gobernó (centro de México, s. XVI)
Víctor M. Castillo F., "Relación Tepepulca de los señores de México Tenochtitlan y de Acolhuacan," Estudios de Cultura Náhuatl 11 (1974), 183–225, y ver la pág. 202—203.

themes: 
Numbers, Math
Time, Calendar, Frequency