to reward, recompense something richly (see Molina)
IPAspelling:
semɑhsikɑːnɑmiktiɑ
Alonso de Molina:
cemacicanamictia. nite. (pret. onitecemacicanamicti.) recompensar algo copiosamente. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 15v. col. 2. Thanks to Joe Campbell for providing the transcription.