Old English was kind of... well, weird - at least by our present standards. The G seems to have taken on a quality it sometimes has in Nordic languages in that it sometimes acted as a Y (see the Norse name
Dagny), or was skipped over altogether.
This means that, in the Middle Ages and before,
Magdalene was pronounced in English as... Maudelen, or Maudlin. (Though the actual medieval name
Maud was derived from
Matilda, not
Magdalene.) Maudlin eventually entered English as a word for something overly weepy or sentimental, due to artistic depictions of Penitent
Magdalene. Meanwhile, as a name, Maudlin eventually developed into
Madeline (MAD-uh-lin) /
Madeleine, and then
Madeline developed the MAD-uh-lien pronunciation later (probably around the Enlightenment).
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www.behindthename.com/pnl/69381www.behindthename.com/pnl/69381/109399www.behindthename.com/pnl/69381/91835http://greens-end.myminicity.com