ayoquic.

Headword: 
ayoquic.
Principal English Translation: 

never again (see Molina)

Alonso de Molina: 

ayoquic. nunca mas. aduerbio.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 3v. col. 2. Thanks to Joe Campbell for providing the transcription.

Attestations from sources in English: 

ayoquic (adverb) = nevermore
Daniel Garrison Brinton, Ancient Nahuatl Poetry: Containing the Nahuatl Text of XXVII Ancient Mexican Poems (1887), 150.