on each step; or, from step to step; by degrees (see Molina)
Orthographic Variants:
cecentlamamatlapan
Alonso de Molina:
cecentlamamatlapan. en cada grada, o grada agrada. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 15v. col. 1. Thanks to Joe Campbell for providing the transcription.