arts vs art history

arts and art history both are nouns.

Word	Noun	Adjective	Verb	Adverb
arts	Yes	No	No	No
art history	Yes	No	No	No

As nouns, art history is a hyponym of arts; that is, art history is a word with a more specific, narrower meaning than arts:

arts: studies intended to provide general knowledge and intellectual skills (rather than occupational or professional skills)
art history: the academic discipline that studies the development of painting and sculpture

arts (noun)	art history (noun)
studies intended to provide general knowledge and intellectual skills (rather than occupational or professional skills)	the academic discipline that studies the development of painting and sculpture