If you want to boost and maximize your vocabulary, you need to get to the root of the issue!
Root scanning is one of the most valuable ways to do just that.
The majority of the English language is a composite of Latin and Greek roots, so it would only make sense that if you're able to learn most of these roots and scan challenging English words, you can easily figure out their meanings.
Loquacious is a very challenging word, but if you know the meaning of the roots "loq / locut", which mean 'speech' or 'talk', then it would be easy to guess that a loquacious person is one who speaks frequently or talks incessantly.
It's easy, and I can show you how it's done!