Information & Library Science
- noun a size of paper, especially a British size of writing paper 483 x 610 mm/19 x 24 in. or a size of printing paper 508 x 635 mm/20 x 25 in
- adjective in the service of a king or queen
- noun a member of a royal family
Origin & History of “royal”
Royal and regal are ultimately the same word. both go back to the Latin adjective rēgālis, a derivative of rēx ‘king’. But whereas regal was probably borrowed direct from Latin, royal was acquired via Old French, where rēgālis became roial.