In an excellent or outstanding manner; performed with great skill or quality.
From Latin 'superbus' meaning 'proud' or 'haughty,' which evolved to mean 'superior' or 'excellent.' The adverbial '-ly' suffix was added in English to modify verbs and adjectives.
The original Latin root meant 'arrogant,' but over centuries the word lost its negative connotation and flipped to meaning something genuinely excellent—a rare example of a word becoming more positive over time.
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