Employee
He is an authority in his field.
The base of the word "usurpation" is "usurp". "Usurp" means to seize power or authority without legal right. "Usurpation" refers to the act of wrongfully seizing power or authority.
Lord
It means to formally relinquish power or authority, as when a monarch abdicates. It also means "surrender".It means to relinquish or give up your position or responsibilities.
democracy
Mana means power in Hawaiian. (pronounced mah-nah)
The word "reigned" is in the past tense. It refers to someone having ruled or held a position of power or authority in the past.
"Pradestha" is a Sanskrit word that means leader, chief, or ruler. It is often used to refer to someone who holds a position of authority or influence.
power or authority to do something
Rule, power, sway, control, influence. Btw, I believe you mean synonym. Homophone in a word that's spelled the same or similar, but means something different. Synonym means the same thing, but is a whole different word. There is no actual homophone for authority.
The word authority means a legal format of doing thing or the decision making.
The African Luhya word "Omusala" means Medicine in English language.