What does amissibility mean?
The definition of amissibility
A*mis`si*bil”i*ty,
Etym: [Cf. F. amissibilité. See Amit.]

The quality of being amissible; possibility of being lost. [R.] Notions of popular rights and the amissibility of sovereign power for misconduct were alternately broached by the two great religious parties of Europe. Hallam.