quizqui.

Headword: 
quizqui.
Principal English Translation: 

the end, completion (see Chimalpahin); see also quizqui combined with numbers, which means separated or divided into that many items (see Molina); something taken out (from the verb quiza, it seems, SW); huel quizqui = well formed (A. Wimmer, 2004; see the Gran Diccionario Náhuatl)

IPAspelling: 
kiːski
Alonso de Molina: 

mieccan quizqui. cosa diuidida assi, o en diuersas maneras, o cosa de diferentes propriedades.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 56r. col. 2. Thanks to Joe Campbell for providing the transcription.

Attestations from sources in English: 

quizqui (adjective) = separated, divided
Daniel Garrison Brinton, Ancient Nahuatl Poetry: Containing the Nahuatl Text of XXVII Ancient Mexican Poems (1877), 162.

quizqui un ii. acatl xihuitl. de 1607. años. = End of 11 Reed year, the year 1607.
(1607, Central Mexico)
Annals of His Time: Don Domingo de San Antón Muñón Chimalpahin Quauhtlehuanitzin, James Lockhart, Susan Schroeder, and Doris Namala, eds. and transl. (Stanford: Stanford University Press, 2006), 106–107.

themes: 
Numbers, Math