What Is The Meaning Of The Name, 'Emrys'?

“Emrys” is an old Welsh name, given to boys as a first name. It’s pretty rare!

What Does “Emrys” Mean?
It’s the Welsh form of Ambrose, which comes from the Late Latin Ambrosius  - this, in turn, comes from the Greek name Ambrosios, which means “immortal.”

There was a Saint Ambrose in the 4th century. He was a theologian and bishop of Milan, and one of the four original Doctors of the Church.

About one hundred years later, there was a Romano-British military leader called Emrys Wledig (or Ambrosius Aurelianus). He was the basis for the character of Merlin in the King Arthur legends, which were written in the 12th century.