Originally: a Tory holding opinions which give a high place to the authority and claims of the established church or state (now historical). Later: an uncompromising, traditionalist, or reactionary Tory or conservative. Compare "High Churchman", "high-flyer".
Of, relating to, or designating such a Tory or conservative. Compare "High Church", "high-flying".
Late 17th century. From high + Tory.