tlayocoxtli. cosa inuentada assi. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 122r. col. 1. Thanks to Joe Campbell for providing the transcription.
Frances Karttunen:
TLAYŌCOX-TLI something created, invented / cosa inventada (M) [(1)Bf.2r]. See YŌCOY(A). Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 305.