pipinqui.

Headword: 
pipinqui.
Principal English Translation: 

something strong, vigorous

James Lockhart, Nahuatl as Written: Lessons in Older Written Nahuatl, with Copious Examples and Texts (Stanford: Stanford University Press and UCLA Latin American Studies, 2001), 230.

IPAspelling: 
pipiːnki
Alonso de Molina: 

pipinqui. cosa rezia y fuerte.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 82r. col. 2. Thanks to Joe Campbell for providing the transcription.

Lockhart’s Nahuatl as Written: 

pret. agentive of a verb now lost. situation with vowel quantity and glottal stop not known. 230