Æðelþryð / Audrey / Ethel

Æðelþryð is an Old English name derived from the elements *æðel* meaning 'noble' and *þryð* meaning 'strength'. It was a popular name in Anglo-Saxon England, particularly among royalty and nobility. The name is most famously associated with Saint Æthelthryth (also known as Etheldreda), an East Anglian princess who founded the monastery at Ely in the 7th century. Her sanctity and royal lineage contributed significantly to the name's prestige and widespread use during the Anglo-Saxon period.

Over time, the spelling and pronunciation of Æðelþryð evolved. It eventually became Etheldred and then Audrey, with the latter becoming the most common modern form. The original Old English spelling is now largely archaic and primarily of historical and linguistic interest, though it offers a direct link to the name's ancient roots and its powerful, noble meaning.