Reddit reviews Easy Ways to Enlarge Your German Vocabulary (Dover Dual Language German)
We found 3 Reddit comments about Easy Ways to Enlarge Your German Vocabulary (Dover Dual Language German). Here are the top ones, ranked by their Reddit score.
https://www.amazon.com/Enlarge-German-Vocabulary-Dover-Language/dp/0486230449
This book, while a bit dated in its format, is an excellent tool for building a better understanding of prefixes and suffixes in German. It's cheap too, so it's easily worth the investment. Not going to link anything, but I'm sure a resourceful person could find a pdf of it too, if one were so inclined.
I wrote this free online grammar textbook after having exactly the same problem. But I would also recommend this somewhat obscure older one, which teaches vocabulary in a very structured and bilingual/comparative way that I found much more clear than current methods.
http://www.amazon.com/Enlarge-German-Vocabulary-Dover-Language/dp/0486230449
Not necessarily a dictionary, but this book gives a pretty decent breakdown of all sorts of prefixes and suffixes that get added to words in German, which makes it easier to know a lot of basic verbs and expand that list into a much richer lexicon.