based on classification of these 5140 words, we can see that Albanian language seems to have very mixed origin with heavy influence of other languages... but can it really be the case that all these words are loan words?
number of Greek and Slavic words seems to be proportional to historic influence and mixing with neighbouring populations which was intensive especially in south Albania that was probably Albanized only in times when Byzantium was weakened by Ottoman attacks in Asia and by rapid expand of Serbian state under tsar Dusan...
http://en.wikipedia.org/wiki/Arvanites
this rapid spread and assimilation of Slavic and Greek natives explains why south Albanians have much stronger J2 and R1a haplogroup and why Albanians have I2a2 haplogroup while Arberesh (Albanians from Italy who migrated there when Ottomans took over Albania) do not...
http://dienekes.blogspot.com/2010/07...eshe-from.html
but number of latin and turkish words is disproportionally high.... Roman empire and Turkish empire did rule the area but the languages of invaders that do not massively settle conquered area are not likely to have that strong impact....
I think that some of the words travelled in other direction as Dardanians did live in Asia minor, so part of the words classified as Turkish might origin from Asia minor before Turks...similarly Roman empire does relate legend of origin to Aeneas who moved to Italy after Trojan war... and Aeneas was Dardanian.... so part of the vocabulary thought to origin from Latin might have traveled from Dardanian language of Asia minor to Latin..
http://en.wikipedia.org/wiki/Aeneas
otherwise I agree that words of unknown origin are probably original basis of Albanian and likely origin from vocabulary of haplogroup E that comes from Afro-Asiatic language branch.... logically, as haplogroup E went to Anatolia its vocabulary was through everyday interaction influenced by vocabulary of Anatolian languages that were proto indo-european (PIE)... as this was very long time ago, today Albanian is indo-european language although probably originally it was Afro-Asiatic language...