Principal English Translation:
a short, padded and quilted jacket-like cotton or wool armor (sleeveless and sometimes had ties in front); or, a closed, pull-on, either an undecorated garment reaching to the top of the thigh, or a decorated one reaching to the mid-thigh; wooly huipiles
Justyna Olko, Turquoise Diadems and Staffs of Office: Elite Costume and Insignia of Power in Aztec and Early Colonial Mexico (Warsaw: Polish Society for Latin American Studies and Centre for Studies on the Classical Tradition, University of Warsaw, 2005),103.
Alonso de Molina:
ichcauipilli. armas colchadas para la guerra.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 32r. col. 2. Thanks to Joe Campbell for providing the transcription.
Attestations from sources in English:
From ichcatl (cotton) and huipilli (blouse).
Attestations from sources in Spanish:
yn tholteca yn icxicouatli yn quetzalteueyac yzcatqui yn intepan yn nauhcan ynic tlamaceuhque = He aquí los linderos, y las cuatro partes en las que hicieron penitencia los tolteca Icxicouatl y Quetzalteuyac…. (Quauhtinchan, s. XVI)
Historia Tolteca-Chichimeca, eds. Paul Kirchhoff, Lina Odena Güemes, y Luis Reyes García (México: CISINAH, INAH-SEP, 1976), 158, 156.
…yn ichcauipilzoltzitzintin yn tlauitolzoltzitzintin…. = …los ichcauipilli viejos, los arcos viejos…. (Quauhtinchan, s. XVI)
Historia Tolteca-Chichimeca, eds. Paul Kirchhoff, Lina Odena Güemes, y Luis Reyes García (México: CISINAH, INAH-SEP, 1976), 155, 156.