coloured vs blackamoor

coloured and blackamoor both are nouns.

Word	Noun	Adjective	Verb	Adverb
coloured	Yes	Yes	No	No
blackamoor	Yes	No	No	No

As nouns, blackamoor is a hypernym of coloured; that is, blackamoor is a word with a broader meaning than coloured:

coloured: a United States term for Blacks that is now considered offensive
blackamoor: a person with dark skin who comes from Africa (or whose ancestors came from Africa)

Other hypernyms of coloured include African-American, Black, Negro, Negroid, Black person.

coloured (noun)	blackamoor (noun)
a United States term for Blacks that is now considered offensive	a person with dark skin who comes from Africa (or whose ancestors came from Africa)

coloured (adjective)	blackamoor (adjective)
having color or a certain color; sometimes used in combination
(used of color) artificially produced; not natural
having skin rich in melanin pigments;
favoring one person or side over another