something dedicated or set aside for God (see Molina, note the loan word "dios," god)
Orthographic Variants:
itechpoui in dios, ytechpouhqui in dios
Alonso de Molina:
itechpouhqui in dios. cosa dedicada o diputada para dios. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 42v. col. 1. Thanks to Joe Campbell for providing the transcription.