Emily Dickinson Lexicon

ducal, adj. [L. ducāl-is, leader; see duke, n.]

1. Regal; royal; imperial; majestically silent; [fig.] reclusive; elusive; like a mollusk hiding in a shell.
2. Aristocratic; belonging to a doge; pertaining to a duke.
3. Phrase. “Ducal Showing”: aristocrat's coronet; mantle for a duke; trappings of royalty; [fig.] courtly exhibition; award ceremony; presentation of accolades.