Definify.com

Webster 1828 Edition

Noun.

A different, but less common spelling of seigniory, which see. It signifies lordship, dominion, and in Shakespeare, seniority.

signory ‎(plural signories)

(now rare) A territory or domain, especially under a feudal lordship.
- 1644, John Milton, Aeropagitica:
  Such honour was done in those dayes to men who profest the study of wisdome and eloquence, not only in their own Country, but in other Lands, that Cities and Siniories heard them gladly, and with great respect, if they had aught in publick to admonish the State.
Overlordship, dominion.
(now historical) A ruling assembly, specifically of various Italian republics; a signoria.