Sentence:  He excused himself to his brother, the Argonaut, who reproached him for appearing before breakfast in a well-worn coat, 'it is my ante-jentacular coat, Jack ' ; and answered his apologies for troubling him with a letter to London, by saying, ' I shall put it into the <WSD>denarian</WSD> post, and there my trouble will end;. 
Meaning of the word marked with <WSD> tags:  Pertaining to the number 10.