<p>I don’t know many people who are going to use big words like “mellifluous” in their common vocabulary. 
I think it’s good to have a wide and intelligent vocabulary, but language is meant to be practical as well. </p>
<p>Honestly, taking Latin has been the single most helpful factor in improving my vocabulary. Knowing basic Latin terms and roots makes it much easier to decipher the meaning of almost any word. A huge portion of the English language is derived from Latin!</p>