Is there any where that I can download the database/dictionary for word families? For example one line of it will have something like this:
Pellucid, pellucidity, pellucidly, pellucidness
A top google search gives me the Word Family Framework of British Council. But it only contains popular words. I also have tried all the links in Is there an online sample sentence database or search engine? question, but they don't give me what I need.