Tocharian queries

From: george knysh
Message: 43369
Date: 2006-02-11

1. We are told that Tocharian separated from other
"eastern" IE languages prior to the satemization
process. What is the current explanation for Toch.
"four" (STWAR (A) STWER (B)< PIE *kwetwor) How does
one get that "S"? Is it some sort of late prefix to an
earlier development *kwetwor --> *tw(a,e)r, or is the
"S" an indication that Toch. was influenced by
satemization in this instance just before "moving
away"?

2. Is there any evidence that Toch. borrowed lexically
from known IE languages other than Indic (Sanskrit) or
Iranian?

3. Is there evidence that it borrowed lexically from
known non-IE languages other than Tibetan, Chinese,
and Turkic? E.g. Finno-Ugric? NB. In both 2 and 3
I'm asking about verbal "loans", not about phonetic,
morphological and other such similarities

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