one who shows compassion for others; or someone who makes others sad (see Molina)
Alonso de Molina:
tetlaocoltiani. el que pone a otro compassion, o el que entristece a otro. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 109r. col. 1. Thanks to Joe Campbell for providing the transcription.