Eleanor
wiktionary
The first known bearer was Eleanor of Aquitaine (1122–1204), Provençal Aliénor, perhaps from Latin alia(“other”) and her mother's name Aenor, its meaning thereby said to be “the other Aenor”. This Aenor seems to come from earlier Adenordis, which might be some corruption of Adamardis, feminine form of Ademar or Adamarus, from Proto-West Germanic *Audamār, from the Proto-Germanic elements *audaz(“riches”) + *mēraz(“fame”).
An Arabic origin from نُور (nūr, “light”) has also been suggested. Eleanor has often been erroneously interpreted as a variant of Helen.
More at Eleanor. Also see Aenor.
etymonline
Eleanor
also Elinor, from Provençal Ailenor, a variant of Leonore, introduced in England by Eleanor of Aquitaine (1122-1204), wife of Henry II. The Old French form of the name was Elienor.
