something or someone who has been been part of a group that was dispersed
IPAspelling:
seːsemmɑnki
Alonso de Molina:
cecemmanqui. derramada cosa, desta manera. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 15r. col. 2. Thanks to Joe Campbell for providing the transcription.