Hello, I'm looking for a word formation website, where I could type a random word, "knowledge", for instance and would get all the possible variations of the word, e.g. "knowledgeable". Or that I would type in "fridge" and learned it was a clipping of "refridgerator". I'm simply looking for any source of derivation/composition of words - I would sometimes love to either shorten a word or add a prefix/suffix to change/modify its meaning, but have to take either a blind shot or try a regular dictionary to find out whether the word exists or not.
Do you think an etymological dictionary will trace the word's morphological features as well ? As far as my knowledge goes, etymology means origin. Does this involve linguistic features too ?