What was wrong with converting? Wasn't that a sufficiently puffy way to say you're turning a library table into a dining table? Does repurposing add more to the value than converting?
Ok, so maybe repurpose and convert are not synonymous. Conversion indicates the object has been changed in some way, but you can repurpose without changing. So if you put a bigger top on the library table, you are converting, but if you haul it home as is and eat dinner on it, it's only been repurposed, and if you then sleep on it, you've repurposed the repurposition.