"Junia" becomes "Junias"
"Without exception
the church fathers in late antiquity identified Andronicus' partner in Romans 16:7 as a woman as did minuscule 33 in the 9th century which records Iounia (Greek for Junia) with an acute accent. Only later
medieval copyists of Romans 17:7 could not imagine a woman being an apostle and
wrote the masculine name Iounias (Junias) with an s.
This later name Junias did not exist in antiquity; its explanation as a Greek abbreviation of the Latin name 'Junianus' is unlikely."
13
At about the time of Pope Boniface's edict removing the freedom of nuns in 1298, copyists began writing the name Junia as Junias! Yet recent research has shown that the newly created name, Junias, didn't even exist at the time of Paul!
"This hypothetical name Junias is, however, as yet unattested in ancient inscriptions, but the female Latin name Junia occurs over 250 times among inscriptions from ancient Rome alone. Further, the ancient translations and
the earliest manuscripts with accents support reading Iounian as Junia. Finally, Junias would be an irregular form. Therefore, critical scholars today increasingly interpret the name as the feminine Junia."
14
Junia was a very common Latin female name and we have no record of any Roman male bearing the name Junia. But medieval copyists began copying the name with as "s" to hide Junia's sex, not knowing that the name Junias "did not exist in antiquity"! So Junia received a fictitious name, possibly at the command of Pope Boniface VIII!