in fourteen by fourteen or every fourteen (see Molina)
Orthographic Variants:
matlatlactetl onnanaui
Alonso de Molina:
matlatlactetl onnanaui. de catorze en catorze, o cada vno catorze. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 53v. col. 1. Thanks to Joe Campbell for providing the transcription.