Gerry asked

> Actually how large a number of loan words is there in Sumerian of

IE origin? 20, 200, 2000?

Actually it might be the other way around, with Sumerian loan words
in PIE. Some have suggested that IE *kweklo (wheel - circle) comes
from Sumerian *gigir.

And then again, the examples found may even come from a third (now
extinct) language (Perhaps a member of the Hurro-Urartuan family - my
favourite guess).

Regards

John