to restore, or to perfect something (transitive); or to justify to another person (see Karttunen and Molina)
IPAspelling:
yeːktiliɑː
Alonso de Molina:
yectilia. nic. (pret. onicyectili.) desenetrar algo.
yectilia. nite. (pret. oniteyectili.) justificar a otro. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 34v. col. 2. Thanks to Joe Campbell for providing the transcription.
Frances Karttunen:
YĒCTILIĀ vt to restore, perfect something / restaurar (C), lo perfecciona (T) [(1)Cf.60r, (3)Tp.219]. applic. YĒCTI. YĒCTILILIĀ applic. YĒCTILIĀ. YĒCTILĪLŌ nonact. YĒCTILIĀ. Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 337.