Independent of this, it's possible (and probable) that there are pre-IE substrate words in Albanian, but there is no connection what so ever with the so-called 'Pelasgians'.
So let's see...
I don't want to discourage you (rather the opposite), but to me, I'm afraid, most of the words look only superficially similar:After digging in online dictionaries for about 1/2 hour, I think I found some suprising similarities.
dog - txakur, zakur (basque) - zagar (albanian)
mountain - mendi(basque) - mali(albanian)
forest - pinudi (basque) - pylli (albanian)
nut - intxaur (basque) - arre (albanian)
soldier - gudari (basque) - ushtari (albanian)
- "mendi" requires an earlier *bendi.
- "pinudi" is very probably a Latin loanword, from Latin "pinetum" (grove).
- "intxaur" ("walnut") is probably a compound word - see "hur" ("hazelnut").
- "gudari" is a compound word, derived from "gudu" ("battle"). It is formed in a similar way as for instance "edan" (to drink) > edari (beverage). Albanian "ushtri" is usually thought to be derived from Latin "hostis" - in any case the two words look not particularly similar to me.
On the flip side, I have noticed these two peculiar words which have no parallel outside Albanian:
- "hekur" (iron)
- "xeheror" (ore, mineral)
That's a lot of assumptions. The oldest find of R1b thus far comes from a Beaker-Bell site in Germany, but it's absent from the various Neolithic sites in western and central Europe - in so far I find the evidence for a founder effect in western Europe quite compelling. If R1b was anywhere in Europe before, it would have been the Balkans (L23 cluster on the Balkans, which is sitting outside of Western Europe L51, however). I'm also not very convinced on the Basque-R1b connection, it's also possible that the Basques were formerly predominantly I2-M26.If I am on the right track with this, this would mean that Basque is the survivor of a family of languages that once were used in most of Europe. Since the basque people are 88% R1b, and many scientists claim that R1b has been in europe before the bronze age and IE-languages expansion, the whole R1a+R1b expansion in Europe with IE-languages seems flawed. Which would mean that we don't really have a model how the IE languages expanded in Europe.