Tocayo

[Anthony Appleyard]

  Someone wrote:-
> By the way, if a word is possessed (with to- 'our' for instance), it cannot
> end is -tl

  Ehecatecolotl <fjgs at servidor.unam.mx> wrote:-
> Just a brief remark on Frances brilliant comment.
> Wouldn´t tonacayotl (nuestro sustento) vs tonacayo (nuestra carne) be an
> exception to the aforementioned?

Are there any nouns whose STEM ends in -tl? What happens to them in
unpossessed singulars where most nouns add -tli? How is double {tl} usually
written?