Well, i looked in the archives of 2003 and found the original thread, but it had only one response of no use. The person asked if you mean Karkut or Karkurt. Now, i can tell you that Karkurt is Turkish, so we won't talk about that. http://www.geocities.com/altingjoka/etymology3
This link takes very long to load!
On this link i found that karkut
is an Armenian word meaning 'hail' as in the hail related to the weather. This is probably a coincidence.
However, i found a site with Jewish surnames in Poland (in a certain place in this case) with the surname Karkutski. Then i found out that the word kirkut
is the common word in Polish for a Jewish cemetary. The surname Karkut must be a Jewish surname.
Also, Kirkute is used in Estland and Kirkutis in Lithuania.
The meaning is thus 'Jewish cemetary' probably.