If you display both versions of the text: it might be helpful to add links to contextual resources, such as the origins of a slur and the historical setting of the writing.
It's only one word that I have lined out, and 90% of the stories containing this word are written by two authors, H. G. Wells and H. P. Lovecraft. So it doesn't need much context. Believe me, those two make it obvious what they mean when they use the word.
*And 50% of the uses of the word occur in one single story "The Rats in the Walls"
or perhaps offer both versions.
Thank you for this library.