Hi, Anna! I do not know anything about DNA project and we do not have Lay as the last name in Slavic languages. I think that there is no relation between Lay and Lusk from language point of view, but I'm not sure. May be the last name changed so that it does not look like Slavic. I investigated my last name Luzgin and related surnames like Lusk by analyzing Slavic and other European languages. I know that lusk, luzg, lush (or lusch), lusp and lust are Slavic words with the same meanings in Slavic. I know that they came to Slavic languages from Wends (see Wikipedia). I know that Irish and Scottish and Scandinavian are halve Wends (Irish and Scottish do not want to know this, scot means cattle in Slavic languages), and I know many-many other things about it - 500 pages in Russian. Russian language have very many common roots with Irish and English because they both are based on Celtic/Wends languages. Russian God Veles or Volos is Celtic God Lugus. The words luzg and luskare originated from leuk = luz = lux = light. Lusk (Luska) and Luzg (Luzga) were Slavic male names, which meant "one eyed man" and later "useless man", "lazy man", "loser". But originally these names were related to light. Lusha is similar female name which meant shining, beautiful, but now it means dirty girl. They were not Christian names. That's why they became bad names. Later the names Lusk (Luska) and Luzg (Luzga)were eliminated by Church from the list of names. Still, Belorussian Jews have theBelorussian name Luska now, because they are not Christian. Slavic surnames (like Lusk)were derived from the first name of the founder of the family, gen. Lusk surname is originated from the South coast of Baltic sea where Wends lived (near German city Rostock, near Denmark.) That's why Germans have Lusks too. But hey say it differently and correctly: L-oo-sk. American Lusks do not want to know that they have Slavic roots and they call themselves L - us -k. My surname in English is Luzgin, but I say it Looz-gin. Luschi is the other surname which is exactly the same as Lusk. In Rome and Italy many noble people were Luscus in Latin and Luschi in Italian: Luscus -the Annia, Aufidia and Furia Gens,Luscinus - the Fabricia Gens, Count de Peverelli Luschi of Florence. Antonius Luscus(1346-1442), the famous artist and Pope's secretary, was called: Antonio Loschi,: AntoniiLuscus, Antonii Luschi Vicentini, Antonius Luschus Vicentinus, Antonio Luscho, Antonii Lusci, Antonio Lusco, Antonio Losco. Vitale Loschi was the bishop of Parma, etc. But they were Slavic because they were from Florence and Florence was founded by etrusks, which were from Anatolia (Turkey), but their language was like very old Slavic.