Re: Hachmann versus Kossack?

From: fournet.arnaud
Message: 57254
Date: 2008-04-13

.3 The nominal plural marker is geminated if the word ends in a liquid
(r l), a nasal (n m), or a semivowel (j w), and if vowel-weak ening
occurs in the plural form:
æmbal 'comrade, companion', æmbælttæ 'comrades';
kom 'gorge, ravine', kæmttæ 'gorges';
xaj 'part, portion', xæjttæ 'parts, portions', etc.

Note further that Ossetic has many assimilations, one is -nt- > -tt-,
eg. in dættæ 'rivers' from dænttæ from don "river"

Moksha mordvin (in Mid stream right bank of the Volga) also has that kind of
loman "man" > lomatt "men"
film > filpt "films" (not in Ossetic)

SprachBund ?

What is the origin of -tt- plural in Ossetic ?
Looks so Uralic.