Not sure, but i found this:
according to this site: http://www.ancestry.com/search/SurnamePage.aspx?html=b&ln=Pabis&sourcecode=13304
it's a Polish pet form of Pabian, which is a variant of Fabian, which is derived from Fabius, meaning 'bean' (http://www.behindthename.com/php/view.php?name=fabius)And, there's already been a discussion about Fabian and Fabis, so maybe it's interesting to read: http://www.behindthename.com/bb/arcview.php?id=45664&board=gen
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The history and meaning of second name.  ·  Łukasz Pabiś (WU_Key)  ·  11/24/2004, 5:20 PM
Not sure, but i found this:  ·  Indy  ·  11/25/2004, 11:00 AM