seign·eur 
(sān-yûr, sĕn-yœr)
(sān-yûr, sĕn-yœr)n.
1. A man of rank, especially a feudal lord in the ancien régime.
2. In Canada, a man who owned a large estate originally held by a feudal grant from the king of France.
3. Used as a form of address for such a man.
[French, from Old French seignor, from Vulgar Latin *senior; see SEIGNIOR.]
seign·euri·al adj.