yaotlachia.

Headword: 
yaotlachia.
Principal English Translation: 

overlook and observe from a watchtower the sentry in war (see Molina)

Alonso de Molina: 

yaotlachia. ni. (pret. oniyaotlachix.) atalayar la centinela enla guerra.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 31r. col. 2. Thanks to Joe Campbell for providing the transcription.