What is "yborn"

Usage examples of "yborn".

Nat fully quyke, ne fully dede they were, But by here cote-armures, and by hir gere, The heraudes knewe hem best, in special, As they that weren of the blood roial Of Thebes, and of sustren two yborn.

Enformed whan the kyng was of that knyght, And hath conceyved in his wit aright The manere and the forme of al this thyng, Thus glad and blithe this noble doughty kyng Repeireth to his revel as biforn, The brydel is unto the tour yborn, And kept among hise jueles, leeve and deere.