régime

Regimen in Latin meant guidance, direction, rule — from regere (to guide, to rule). The same root gives English 'regent,' 'regal,' 'regulate,' and 'rex.' In medieval medicine, regimen sanitatis meant a health regimen — rules for diet, exercise, and hygiene. French compressed regimen into régime and expanded its meaning to include any system of government or administration. The medical and political meanings coexisted: a dietary regime and a political regime were both systems of management.

The French Revolution made régime a political term with moral weight. The system that preceded the Revolution became the Ancien Régime — the Old Regime. The phrase was coined to mark a before and after: the old system of monarchy, aristocracy, and feudal privilege was named and judged in two words. Régime stopped being neutral. It became the word for a system you want to replace.

English borrowed regime from French in the eighteenth century. In English, the word developed a pejorative edge that the French original did not always carry. 'The regime in Tehran,' 'the North Korean regime,' 'the authoritarian regime' — English uses regime almost exclusively for governments the speaker disapproves of. Democracies have 'administrations.' Autocracies have 'regimes.' The same system of government gets different words depending on whether the speaker approves of it.

The health meaning persists in parallel. A fitness regime, a skincare regime, a writing regime — here the word is neutral, even positive. Managing your body is a regime. Managing a country is a regime. One is a lifestyle choice. The other is a political accusation. The Latin root regere — to guide — sits beneath both.