seniory noun3 •(no longer used) Position as lord, lordship; primacy.Beholde where is nowe the glorye of kynge assurey: whiche behelde vnder his seignorie and dominacion: the nombre of .xxvi. prouincis — 1506 •(no longer used) The territory of a lord, dominion.[…] Charles kynge of Fraunce surnamed the great, toke Desiderius laste kinge of Lombardes prisoner and annexed his seniory to the dominion of Fraunce. — 1565 •(no longer used) Collectively, the lords of a region.[…] if any man bring a letter vnto him, hee may not open it, but in the presence of the Seigniorie, and they are to see it first, which being read, perhaps they will deliuer it to him, perhaps not. — 1599 formsseniories