Webster's English Dictionary

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excavate

ex.ca.vate \'ek-sk*-.va-t\ vb [L excavatus, pp. of excavare, fr. ex- + 
   cavare to make] hollow 1: to form a cavity or hole in  2: to form by 
   hollowing  3: to dig out and remove  4: to expose to view by digging away a 
   covering  : to make excavations