Please check on your other posting as I have left some more information for research for you.
Your ancestors did use Cyrillic alphabet.
Where was the ancestor YABOR born? Same village, Pcoline?
The English Y is a J sound in Slovak so the surname will start with J. Not finding JABOR there. You are sure of the spelling?
Map of Zemplin region, Slovakia where Pcoline is locatedhttp://krajzemplin.szm.com/indexenglish.htm
Map of Zemplen megye, Hungary where Pcsolina is http://lazarus.elte.hu/hun/maps/1910/zemplen.jpg