tonacati.

Headword: 
tonacati.
Principal English Translation: 

for the year to be fertile and abundant (see Molina)

IPAspelling: 
toːnɑkɑːti
Alonso de Molina: 

tonacati. (pret. otonacatic.) ser año fertil y abundoso.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 149r. col. 2. Thanks to Joe Campbell for providing the transcription.

Attestations from sources in English: 

tonacati (verb) = to be prosperous or fertile
Daniel Garrison Brinton, Ancient Nahuatl Poetry: Containing the Nahuatl Text of XXVII Ancient Mexican Poems (1877), 166.