Swannery :: Swanmark (n.) A mark of ownership cut on the bill or swan.
Swanny :: Swannery (n.) A place where swans are bred.
Wanness :: Wanness (n.) The quality or state of being wan; a sallow, dead, pale color; paleness; pallor; as, the wanness of the cheeks after a fever..
Wannish :: Wannish (a.) Somewhat wan; of a pale hue.