maudlin

effusively or insincerely emotional

Tearful; easily moved to tears; exciting to tears; excessively sentimental; weak and silly.

from Old French 'maultifler' meaning to murmur sorrowfully

“The dreadful creature insisted upon shows of maudlin affection that could not be accorded to her, so that she existed in a condition of preternatural sensitiveness.”

— George Meredith, Complete Project Gutenberg Works of George Meredith

“The widespread artistic representations of Mary Magdalene in tears are the source of the modern English word maudlin, meaning "sickeningly sentimental or emotional".”