Hello,
I did a search at
http://smgf.org/ using "Zorab" and my Genographic
ancestral genetic test results and got the result:
http://smgf.org/ysearch_results.jspx?markerOrder=smgf&labStandard=Gen...
which might indicate that Zaruba is the Czech & Hungarian version of
Zohrab/Zorab. It is certainly worth looking into, anyway.
See my family history page at:
http://homepages.paradise.net.nz/zohrab1/
Peter Zohrab