yehuecahua.

Headword: 
yehuecahua.
Principal English Translation: 

something annexed, ancient, or old (see Molina)

Orthographic Variants: 
yeuecaua
Alonso de Molina: 

yeuecaua. cosa aneja, anciana o vieja.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 36r. col. 2. Thanks to Joe Campbell for providing the transcription.