Steven Johnson in his book Where Good Ideas Come From: The Natural History of Innovation used the word exaptation to describe new uses for existing solutions. The word has a biological background and use, but it can be applied to anything. I’ve written about this book before on a post about being cross disciplinary and spreading good ideas.
David King has started a new company called Exaptive which is doing work with a tool and methods designed from the ground up to facilitate leveraging ideas, methods, solutions and data across different disciplinary areas. Very interesting. You can follow their blog here.