It is also part of the evidence
> that the same root forms Slavic te^sto and OIr. taes, Welsh
toes 'dough'
> pointing to *taisto- which may be a perfect superlative of an
adjective,
> IE *táy(H)-isto- 'most compact' showing that any a-timbre seen in
forms of
> this root does not have to come from the laryngeal, for the root
had /a/
> itself.
Jens
************
But, according to Mr. Vidal and Mr. Gasiarowski, there are no traces
in Slavic languages of superlative in -isto-. You probably have not
read our discussion about Slavic word <nevesta> 'the newest one, the
newest member of the family, young bride', comparable with Albanian
<e reja> 'the new one, the new member of the family, young bride'.
Now, we have also *te^sto 'dough, most compact'
Konushevci