CC Source is an abbreviation for Creative Commons Source, which is a type of copyright license that allows the public to use and share creative works. It was created by the non-profit organization Creative Commons in 2002 and provides a way for authors to give permission for others to use their work without having to go through the traditional copyright process. The ORIG in this crossword solution refers to the original creator of the work, who is given credit for their work when it is shared.