In a way that serves to make distinctions, separate, or divide; by means of distinguishing between things.
From 'discretive' plus the adverbial suffix '-ly.' The whole chain: Latin 'discretus' → 'discrete' → 'discretive' → 'discretively.'
Words this specific are almost never used in conversation—they exist primarily for academic philosophers and logicians to communicate precise technical meanings that can't easily be expressed with common words.
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