That last post took a while to assemble, so let me quickly offer this worksheet on the Greek root melan/o; it means black. You find this root at the basis of a lot of words, many of them with negative denotative or connotative meanings melancholy comes to mind), which gives one pause, I should think, to consider the origins of racism.
If you find typos in this document, I would appreciate a notification. And, as always, if you find this material useful in your practice, I would be grateful to hear what you think of it. I seek your peer review.