Answer: To abandon is to be compelled to leave, more over you make the mental decision to abandon. To leave is to almost "forget" what you left behind.
Explanation:
Best example is someone Abandoning there studies which implies they did it on purpose and then someone Leaving there books at home, almost like they "forgot" about them.
Once upon a midnight dreary, while I pondered, weak and weary,
Over many a quaint and curious volume of forgotten lore—
While I nodded, nearly napping, suddenly there came a tapping,
As of some one gently rapping, rapping at my chamber door.
"'Tis some visiter," I muttered, "tapping at my chamber door—
<span> Only this and nothing more."</span>
Enter the dragon was the movie that he was killed in durring filming it