A Word Some Reviewer Will Call Foul
My poem employs the word "unbeholden," meaning not obliged to anyone. Shelley used the word himself at least once, but in its more common sense, unperceived. The other meaning, though attested back to the seventeenth century, is much less common, but he would have known of it -- "not beholden" was common enough in his time -- and not hesitated to use it if he needed to.
I'm sure I'm going to get called on this, though. Well, tough.