viceroy

noun

Etymology: From Middle French vice-roy, from vice- + roy (“king”). Compare viscount.

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.”

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.