poyahua.

Headword: 
poyahua.
Principal English Translation: 

to darken something (see Molina and Karttunen)

Orthographic Variants: 
poyaua
IPAspelling: 
poyɑːwɑ
Alonso de Molina: 

poyaua. nitla. (pret. onitlapoyauh.) matizar en pintura.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 83r. col. 1. Thanks to Joe Campbell for providing the transcription.

Frances Karttunen: 

POYĀHU(A) vt to darken something / matizar en pintura (M) [(1)Cf.97r]. M also has poyahuac 'something shaded, something dark,' which implies intransitive *POYĀHUA.
Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 204.

Attestations from sources in English: 

poyaua (verb) = to color, to dye
Daniel Garrison Brinton, Ancient Nahuatl Poetry: Containing the Nahuatl Text of XXVII Ancient Mexican Poems (1877), 160.

themes: 
Colors