1. 
   Derf
   Derf and Derf Backderf are the pseudonyms of American artist John Backderf, most famous for the comic strip The City, which has appeared in a number of alternative newspapers since 1990. In 2006 Derf won the Robert F. Kennedy Journalism Award for cartooning. ==The City== Backderf is one of the most...
   Found op http://en.wikipedia.org/wiki/Derf
   
   
2. 
   Derf
   Derf adjective [ Icelandic djafr .] Strong; powerful; fierce. [ Obsolete] -- Derf'ly , adverb [ Obsolete]
   Found op http://www.encyclo.co.uk/webster/D/42
   
   
3. 
   Derf
   • (a.) Strong; powerful; fierce.
   Found op http://thinkexist.com/dictionary/meaning/derf/
   
   

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