Sentence:  The pope sits upon a draped throne chair, robed in full pontificals, holding the keys in one hand, and giving the benediction with the other. His action is dignified and natural, and the <WSD>accessorial</WSD> ornaments about the marble background, and upon the large console which supports the statue, are tasteful, and carefully sculptured. 
Meaning of the word marked with <WSD> tags:  Of or relating to an accession.