Wiktionary
accidentary
a. 1 (context obsolete English) accidental; occurring by chance; occasional 2 (context obsolete English) logically accidental; non-essential
Usage examples of "accidentary".
Epicurus, atoms be the cause of all things and that life be nothing else but an accidentary confusion of things, and death nothing else, but a mere dispersion and so of all other things: what doest thou trouble thyself for?