A student or alumnus of Harrow School, an elite private school in England; may also refer to something associated with that school.
From Harrow (the school, located in northwest London) plus Latin -ian suffix. Harrow School was founded in 1572, and the term 'Harrovian' became standard in the 19th century to describe its students and alumni.
Harrovian is part of Britain's private school culture—Old Etonians, Harrovians, and Wykehamists (from Winchester) make up a kind of secret society of the elite. The fact that schools have their own name tags for alumni shows how stratified British society remains!
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