Re: Loaded words replaced by euphemisms
Which English language?
In the era of Viking raids, the language used by the inhabitants of what is now England was Anglo-Saxon, commonly known as Old English. That language didn't derive much from Brythonic and Latin, so presumably the mythical Hengist and Horsa brought English with them.
I have no idea whether the Anglo-Saxon of the incomers already used black and white figuratively, or whether they were familiar with black people. In view of the fact that there seems to be some dispute about where they came from, I doubt that anyone else has.