Americanist
/əˈmɛrɪkənɪst/ /əˈmɛrɪk(ə)nɪst/noun
A specialist in or student of subjects relating to the Americas or the United States.
adjective
Of, relating to, or designating the study of the Americas or the United States; of or designating an Americanist.
Origin
Mid 19th century; earliest use found in Charles Kingsley (1819–1875), novelist, Church of England clergyman, and controversialist. From American + -ist.