1. 
   Hoarsen
   Hoars'en transitive verb [ imperfect & past participle Hoarsened ; present participle & verbal noun Hoarsening .] To make hoarse. « I shall be obliged to hoarsen my voice.�...
   Found op http://www.encyclo.co.uk/webster/H/50
   
   
2. 
   Hoarsen
   • (v. t.) To make hoarse.
   Found op http://thinkexist.com/dictionary/meaning/hoarsen/
   
   
3. 
   hoarsen
   1) Get rough 2) Get rough, as a voice 3) Lose mellifluence 4) Make raspy 5) Make rougher, as a voice
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/hoarsen/1
   
   

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