Definition of "charmlet"

I joy to see you wear around your neck the holy relic I bestowed on you;—but what Moorish charmlet is that you wear beside it?

1829 May 2, [Walter Scott], chapter VIII, in Anne of Geierstein; or, The Maiden of the Mist. […], volume III, Edinburgh: […] [Ballantyne and Company] for Cadell and Co., […]; London: Simpkin and Marshall, […], page 222

Let us consider a scenario where a species of charmlet would decay on average n percent of the time before making contact with an ordinary baryon or atomic nucleus and where the probability of the conversion of the baryon or atomic nucleus is 100 percent. The average probability of the initial charmlet converting an ordinary nucleon or atomic nucleus to another catalytic charmlet is n/100.

2016, James Essig, Call of the Cosmic Wild. Relativistic Rockets for the New Millennium, page 199