Is there something like a thesaurus that offers terms more often used in the past? For instance, I beg you would, in Shakespearean times, be prithee, while chicks during the 1920s would be dolls. ...
I would be interested in using a sort of etymological thesaurus. Imagine a normal thesaurus, but with each word in an entry somehow marked to indicate whether it comes ultimately from Latin, German, ...