viceroy

Etymology

From Middle French vice-roy, from vice- + roy (“king”).

noun

1. One who governs a country, province, or colony as the representative of a monarch.
   Ireland was governed by a Viceroy representing the English King/Queen when it was part of the United Kingdom of Great Britain and Ireland.
   The Viceroy's on board - tends to liven things up. 1980, David Lean, A Screenplay of E.M. Forster's A Passage to India, Script City, page 2
2. A zongdu.
3. An orange and black North American butterfly (Limenitis archippus), so named because it is similar to, but smaller than, the monarch butterfly.