What is a cataplasm, and what do you do with one? Would you be insulted if someone called you a higgler? Would you want someone to give you a basilicon? What does it mean when a canoe flacks? Would you eat wapato? Familiar to Meriwether Lewis and William Clark, these words were penned by expedition members in their journals but are not commonly spoken, written, or understood today.Now the Lewis and Clark Lexicon of Discovery is available to help modern readers better understand the language of two centuries ago. A special emphasis on pronunciation will be exceptionally valuable to historical re-enactors. The result of five years of research on the history, people, and physical world of the expedition, this new reference work features over 1,100 entries and more than 2,000 illustrative quotations, as well as considerable background material on the English (and other languages) of the expedition.