The American Heritage Dictionary of Indo-European Roots by Calvert Watkins
A modern dictionary of Indo-European word roots.
ISBN-10: 054754944X
Publisher:Houghton Mifflin Harcourt
https://www.amazon.com/American-Heritage-Dictionary-Indo-European-Roots/dp/054754944X/ref=pd_sim_14_2?_encoding=UTF8&psc=1&refRID=HJWH1N7VC07VSVB445PE
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