acalcuachpanitl.

Headword: 
acalcuachpanitl.
Principal English Translation: 

the sail of a boat or ship (see Molina)

Orthographic Variants: 
acalquachpantli, acalquachpanitl
Alonso de Molina: 

Acalquachpanitl. vela de nao.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 1v. col. 1. Thanks to Joe Campbell for providing the transcription.