I've used this for years, keeping an old copy of it checked out always from the library. It's Smithand Hall's English-Latin Dictionary from 1871. I just realized it's online. You have to use Internet Explorer, and download a little program, but there is *no* better dictionary I've ever seen to go from English into Latin (usually it's the other way around, but not for something like making EB).
http://www.grexlat.com/biblio/smith/
The only thing I don't like is the lack of the proper names at the end. They are there in the hardcopy but not here. Place names and people's names.
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And by the way there is a great Greek-English dictionary online too:
http://books.google.com/books?id=BU8...cover&dq=yonge
It's 19th century too, but the revision by Drisler isn't available online - still the original by Yonge is very good too.
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