to lengthens their stride, or walks hurriedly; to search for something by feeling with the feet; to follow someone by their trial (see Molina)
Alonso de Molina:
icxitotoca. n. (pret. onicxitotocac.) alargar el passo el que anda, o caminar apresuradamente.
icxitotoca. nitla. (pret. onitlacxitotocac.) buscar algo vendo atentando con los pies.
icxitotoca. nite. (pret. oniteicxitotocac.) seguir por rastro a otro. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 34v. col. 1. Thanks to Joe Campbell for providing the transcription.