This is the 7965th most frequent Portuguese word.
régia
"Régia" in English means "royal" or "regal."
Here, 'régia' functions as an adjective describing 'ceremony,' highlighting its royal characteristic.
A cerimônia régia foi organizada com grande esplendor.
The royal ceremony was organized with great splendor.
In this usage, 'régia' modifies 'signature,' indicating that it is done by an entity associated with royalty.
A assinatura régia do decreto foi realizada no salão principal.
The royal signing of the decree took place in the main hall.
For this sentence, 'régia' describes 'architecture,' emphasizing its distinguished and royal design.