>Why not. But it looks funny, and makes you do funny things with the
>stress. That final S in 'Nenets' presents some emotional difficulties >for
certain of us AmE speakers.

If I were a member of the non-existing American Academy of Standartised
Language, willing to help AmE speakers, I'd vote for "Nens" ("Nensic"). I
bet the original form used by the Nentsy themselves is "nens", not "nenets"
(would be nice to know if it's true:) and the difference between "s" and
"ts" isn't that big if we care about easy pronunciation.

Juozas Rimas