my gg-grandmother was Katalin ARPASI from Hungary. She married Ferencz Palmueller in 1849 and lived in Vereb, Fejer, Hungary with some others of the ARPASI family.
My hungarian family told me that the origin of the surname ARPASI was not the small village called Arpas. The hungarian word arpasi means the german word "Gerste". The original surname of the Arpasi family was "Gerstenwaller" or similar. The duke where the family members worked for didn't like german surnames and forced the family members to change their surname "Gerstenwaller" (or similar) into Arpasi. In one church record entry I found Katalin Arpasi with the surname "Gestweller". So the story seems to be true.
I am very interesting in contacts to researchers in "Arpasi"
Much greetings ...