polymathy
\ puh-LIM-uh-thee \, noun;
1.learning in many fields; encyclopedic knowledge.
Quotes:
It was the ultimate test of Franklin’s scholarship and polymathy , a phonetic alphabet designed to have a “more natural Order,” than the existing system.
-- Jimmy Stamp, "Benjamin Franklin's Phonetic Alphabet," Smithsonian , May 10, 2013
Even so, Ross’s eccentricity cannot fully obscure his impressive polymathy —he expounds just as fluently on geology and the coffeehouses of Samuel Johnson-era London as he does on Rogers’s innovative war-making.
-- Marc Tracy, "Nonfiction Chronicle," New York Times , June 24, 2009
Origin:
Polymathy descends from the Greek words poly meaning "much," and manthánein meaning "to learn." It entered English in the mid-1600s.
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