matlaccan. en diez partes. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 53r. col. 1. Thanks to Joe Campbell for providing the transcription.
Frances Karttunen:
MAHTLACCĀN in ten places / en diez partes (M) [(2)Cf. 91V]. See MAHTLAC-TLI, -CĀN. Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 131.