tecuappantli.

Headword: 
tecuappantli.
Principal English Translation: 

the arch of a stone bridge; or, a stone bridge

Orthographic Variants: 
tequapantli, tecuappantli, tequappantli
Alonso de Molina: 

tequappantli. arco de puente de calicanto, o puente de calicanto.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 105r. col. 1. Thanks to Joe Campbell for providing the transcription.