In a manner characteristic of Cato; with the virtue, integrity, and principled resistance to tyranny associated with Cato the Younger.
From catonic + -ally (adverbial suffix). Transforms the adjective into an adverb describing how an action is performed.
An 18th-century politician who refused a bribe might be said to act 'catonically'—the adverb form let writers praise behavior in the most historically resonant way possible.
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