melted lard (see Molina) (partly a loanword from Spanish, manteca, lard)
Alonso de Molina:
tlaatililmanteca. manteca derretida. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 114r. col. 2. Thanks to Joe Campbell for providing the transcription.