a granddaughter's husband, a grandson-in-law (see Molina)
Orthographic Variants:
ixuiuh montli
Alonso de Molina:
ixuiuh montli. yerno, marido de nieta. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 48v. col. 2. Thanks to Joe Campbell for providing the transcription.