excellency

noun, plural ex·cel·len·cies.

1. (usually initial capital letter) Also Excellence. a title of honor given to certain high officials, as governors, ambassadors, and Roman Catholic bishops and archbishops (preceded by his, your, etc.).
2. (usually initial capital letter) a person so entitled.
3. (usually initial capital letter) the title of the governor general of Canada while in office.
4. Usually excellencies. excellent qualities or features.

noun plural -lencies or -lences

1. (usually preceded by Your, His, or Her) a title used to address or refer to a high-ranking official, such as an ambassador or governor
2. RC Church a title of bishops and archbishops in many non-English-speaking countries

n.“high rank,” c.1200, from Latin excellentia (see excellence); as a title of honor it dates from early 14c.