As I understood the Middle English “un” ending means possessive or verb ( ourun ), third-person plural past participle or having the quality of ( wollun, lynun, goldun, stonun)

Why does “n” end in “eirun” egg?

Bible Job:

Wycliffe’s Bible Job. “Eggs”:

The

King James Bible: “Which leaveth her eggs in the earth, and warmeth them in dust…”