The system of government in which the executive branch is legitimised by parliament.
2016, Pasi Ihalainen, European Parliamentary Experiences from a Conceptual Historical Perspective, Pasi Ihalainen, Cornelia Ilie, Kari Palonen (editors), Parliament and Parliamentarism: A Comparative History of a European Concept, 22,
The history part comprises six national or regional (combining the Low Countries and Scandinavia) case studies of discursive processes that have defined parliamentarisms in some formative historical periods.