from The Century Dictionary.
- Become rusty and rancid, as dried meat.
Sorry, no etymologies found.
Everything they do is a lie, and everything they have "reasted" to was created BY them in order to profit from it.
Most all tacos are made from a variety of grilled or reasted meats, or some simmered in sauces IE-Tinga, mole ect, so as you can see there is no use of ground meat here (in the U S) except at the Mexican phone company ....