Etymological Dictionary of the Kartvelian Languages - Georgiĭ Andreevich Klimov - Google Books

http://books.google.de/books?id=3B1ryOyFPFkC&pg=PP10&lpg=PP10&dq=%22Zan+languages%22&source=bl&ots=fdLLOkKC9N&sig=0MLKMmFhIGQ8c9

With about 1400 entries, this dictionary presents an etymological analysis of Karvelian vocabulary. The analysis presented draws a clear distinction between two important stages, earlier Common Karvela on the one hand and later Georgia-Zan on the other.