I am a Bukata from CT and ancestors from Belarus. In the family plot in Belarus there are different spellings but family memebers tell me it is all the same. Here is what I have observed so do not count it as scholary fact.
Bukata Russian version
Bukato Belarusian version. Russians names can not end with an 'O"
Bukaty Polish version
and I have an uncle buried in Norwich, CT under the name Bokata. My immigrant and illiterate grandparents had their marriage license as Buket and their church marriage certificate as Bukat.