What's the difference between seignior and seigniory?

Seignior

Definition:

• (n.) A lord; the lord of a manor.
• (n.) A title of honor or of address in the South of Europe, corresponding to Sir or Mr. in English.

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Seigniory

Definition:

• (n.) The power or authority of a lord; dominion.
• (n.) The territory over which a lord holds jurisdiction; a manor.

Example Sentences: