19 baby names with a similar sound and feel to Madelon.
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"armor, protective covering, shield"
"sixth"
"noble, exalted"
"gift of God"
"of the stars, star-like"
"well-born, noble"
"resolute protector"
"sorrows, pains"
"Dweller at the marsh"
"pure"
"life, living"
"land of the Bamar people"
"lover of horses"
"from Crete, the island"
"hope"
"bright, shining"
"resolute protector"
"God saves / Yahweh is salvation"
"joyful, merry, carefree"