bəˈrōnēəl, -nyəl adjective
Etymology: barony + -al
1. : of or relating to a baron or the baronage
2. : splendid , stately , spacious , ample
a baronial room
the logs are of baronial dimensions — George Santayana
3. of an evelope : being smaller and squarer than envelopes used for ordinary commercial purposes and designed especially for short social or personal correspondence or business announcements