to put a border on a piece of cloth or clothing (see Molina)
Alonso de Molina:
tlamachtentia. nitla. (pret. onitlatlamachtenti.) orlar alguna manta o vestidura. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 125r. col. 2. Thanks to Joe Campbell for providing the transcription.