Definition from Wiktionary, the free dictionary
Etymology 1 
- (transitive) To make a hole in (something); to hollow.
- (transitive) To remove part of (something) by scooping or digging it out.
- (transitive) To uncover (something) by removing its covering.
Related terms 
to make a hole in (something); to hollow
to remove part of (something) by scooping or digging it out
to uncover (something) by removing its covering
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Etymology 2 
- “excavate” in Douglas Harper, Online Etymology Dictionary (2001).
- second-person plural present active imperative of excavō