Complex sentence: The idiom appears to have begun in Egypt, where the National Campaign for Change changed its name to Kifaya, but the term has also been adopted by people and groups seeking change in the Lebanon.
Split into simpler sentences: The idiom appears to have begun in Egypt, where the National Movement for Change adopted Kifaya as its motto and has since become more commonly known as such. The term has also been adopted by people and groups seeking change in the Lebanon.