Audrey () is a feminine given name. It is rarely a masculine given name. Audrey is the Anglo-Norman form of the Anglo-Saxon name Æðelþryð, composed of the elements æðel "noble" and þryð "strength". The literal definition of the word is “noble strength” or “strength from nobility”. The Anglo-Norman form of the name was applied to Saint Audrey (died 679), also known by the historical form of her name as Saint Æthelthryth. The same name also survived into the modern period in its Anglo-Saxon form, as Etheldred, e.g. Etheldred Benett (1776–1845).
https://en.wikipedia.org/wiki/Audrey