cicuilli.

Headword: 
cicuilli.
Principal English Translation: 

a doublet or jacket (see Molina); a tunic worn especially by the P'urhépecha (Eloise Quiñones Keber, Codex Teleriano-Remensis, 1995, p. 205); a small body or carcass; a person's waist; or, a person's ribs

IPAspelling: 
sikwilli
Alonso de Molina: 

cicuilli. cuerpezuelo, o jubon.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 22r. col. 2. Thanks to Joe Campbell for providing the transcription.

Frances Karttunen: 

CICUIL-LI waist / cuerpezuelo o jubón (M) [(3)Tp.131,142]. T has E for I in the first syllable.
Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 34.

Attestations from sources in English: 

a rib or ribs; body; doublet; or, an upper body garment, such as a cape or chemise
Gran Diccionario Náhuatl, various entries, translated to English here by Stephanie Wood.

themes: 
Textiles, Clothing