Ex″cel‐len‐cy (?), n.; pl.Excellencies (�). 1. Excellence; virtue; dignity; worth; superiority.
His excellency is over Israel. Ps. lxviii. 34.
Extinguish in men the sense of their own excellency. Hooker.
2. A title of honor given to certain high dignitaries, esp. to viceroys, ministers, and ambassadors, to English colonial governors, etc. It was formerly sometimes given to kings and princes.