Old French *seignorial, from seignor (“master, lord”) + -ial (adjectival suffix).
seignorial (comparative more seignorial, superlative most seignorial)
- In the Middle Ages, relating to or befitting of a nobleman.
1919, Louise Seymour Houghton, Life of St. Francis of Assisi:
- Instead of bales of cloth he saw there only gleaming bucklers hanging on the walls, and arms of all kinds as in a seignorial castle.