Racism

"Blackamoor" was an archaic and generally offensive term used to refer to dark skinned people usually of African ancestry.

The 14th century knight Mulberry initially described the African American soldier Floyd, who he came across having been transported to the American Civil War, as a blackamoor. (AUDIO: Renaissance of the Daleks)

Martha Jones was shocked to hear William Shakespeare describe her as a "delicious blackamoor lady." (TV: The Shakespeare Code)