Extra regnum
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
Out of the realm.
7 Coke, 16; 2 Kent, Comm. 42, note.
Extra services
when used with reference to officers, means services incident to the office in question, but for which compensation has not been provided by law.
Miami County v. Blake, 21 Ind. 32