every other fourteen, each fourteen, or fourteen by fourteen (see Molina)
Orthographic Variants:
matlatlactli onnanaui
Alonso de Molina:
matlatlactli onnanaui. cada uno catorze, o acada catorze, o de catorze en 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.