A girl's name used in France, Holland, the Philippines. It could be a short form of Maria Luisa, Maria Lourdes, Mary Lou, etc.
"Narrative: The original Miryam of the Hebrew scriptures was sister to Moses and Aaron. Some scholars believe her name, and those of her brothers, could have originated in the ancient Egyptian language, and that their meanings are lost. Others offer alternate interpretations, including ''rebellion'' and ''sea of bitterness.''
Various forms derived from Miryam -- Latin Maria developed into French Marie, then English Mary. Among Christians, they are venerated as the name of the mother of Jesus Christ. St. Jerome associated the Virgin's name with the Latin phrase stella maris (''star of the sea''), and this can be regarded as yet another meaning that inspired the widespread use of so many forms of this name." - www.babynamer.com/Malou
Jane: Julie just gave birth to a baby girl.
John: Do you know who they named the baby after?
Jane: They called her Malou, after her mother, Maria and her mother in law, Luisa.