1. 
   Prolongate
   Pro·lon'gate transitive verb [ imperfect & past participle Prolongated ; present participle & verbal noun Prolongating .] [ Latin prolongatus , past participle of prolongare...
   Found op http://www.encyclo.co.uk/webster/P/172
   
   
2. 
   Prolongate
   • (v. t.) To prolong; to extend in space or in time.
   Found op http://thinkexist.com/dictionary/meaning/prolongate/
   
   
3. 
   prolongate
   1) To prolong
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/prolongate/1
   
   

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