Aénor (also Aenora, Ainora; the spelling Aénor suggests an original trisyllabic pronunciation) was a feminine given name in medieval France.
[1] It is likely the origin of, and by the later Middle Ages was replaced by, the name Eleanor (Alienor).
It arose as a latinization of an earlier Germanic name, via the form Adenordis (Aanordis, Anordis, Anor).
[2] Use of the name seems to be mostly confined to the 12th century; before that, it would have retained its original form (Anordis or similar), and after 1200 it had been mostly ousted by its replacement Eleanor.
[3] It may itself be a corruption of Adamardis,[4] apparently a feminine form of Ademar.