aztlacapalli.

Headword: 
aztlacapalli.
Principal English Translation: 

a bird's wing (see Molina)

IPAspelling: 
ɑstɬɑkɑpɑlli
Alonso de Molina: 

aztlacapalli. ala de aue.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 10r. col. 2. Thanks to Joe Campbell for providing the transcription.

Attestations from sources in English: 

aztlacapalli (noun) = the tail feathers of a bird
Daniel Garrison Brinton, Ancient Nahuatl Poetry: Containing the Nahuatl Text of XXVII Ancient Mexican Poems (1887), 150.

themes: 
Animals, Bugs, Insects, Reptiles, Fish, etc.