α. Scottish pre-1700 rimbrust, pre-1700 rumbriest, pre-1700 rymbirst, pre-1700 rymburst, pre-1700 1700s– rimburst, 1900s– rumburst; U.S. regional 1900s– rimburst; Irish English (northern) 1900s– rumburst.
β. Scottish pre-1700 rambussen, pre-1700 rimbursten, pre-1700 rumbursin, pre-1700 rumburssan, pre-1700 rymbursin, 1800s rimbursin, 1900s– rimburstin'; English regional (northern and midlands) 1800s– rimbursin, 1900s– rimbrussen, 1900s– rimbrustin.