A person who believes in conservation or conservatism; someone who advocates for preserving things as they are.
From 'conservatism' + the agent suffix '-ist' (a person who practices or believes in something). This term developed alongside the ideology itself in the 19th century.
The word 'conservatist' is actually rarer than 'conservationist' (someone focused on nature) or 'conservative' (the political term)—showing how language sometimes creates multiple words for similar ideas then drops some.
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