Whig

noun4

1. •
   (UK, historical) A member of an 18th- and 19th-century political party in Britain that was opposed to the Tories, and eventually became the Liberal Party.

   • One was a piece, Two Cheers for the Whig Interpretation of History, by William Cronon, president of the American Historical Association. — 2012
2. •
   (US, historical) A member of a 19th-century US political party opposed to the Democratic Party.
3. •
   (US, historical) An advocate of war against, or independence from, Britain during the American Revolution.
4. •
   (UK, rare) A member (especially a politician) of the former Liberal Party or its successor, the Liberal Democrats.