To treat as a subject of discourse; to discuss or converse about something at length.
From 'discourse' plus the verb-forming suffix '-ify' (to make or cause to be). It creates a verb meaning to convert something into the subject of discourse or extended discussion.
This is such a specialized academic verb that it barely exists in modern English—you'd be more likely to say 'discuss' or 'discourse upon.' But it appears in scholarly texts meaning 'to turn into a topic of extended analysis,' suggesting a more elaborate and philosophically rigorous treatment.
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