Melesina

If Millicent feels too clunky, Melissa too dated, and Amelia too popular, you could consider this ultra rare alternative. Ultimately from the Gothic name, Amalaswintha, meaning "strong in work" or more literally, "brave, unceasing, and strong", the Normans adapted it into Melisent or Melisende, which then became Anglicized as Millicent.

As such, Melesina borrows from the Norman form, to make a unique but wearable option. Borne by Melesina Trench, an 18th century Irish writer and poet who recorded her experiences with famous figures of the period, it's a one-of-a-kind option, which also offers nicknames Millie, Mina, Minnie, and Mela.

Another possible source of the name is form Melusine, a mythological name associated with a water fairy who turned into a serpent once a week.

Pronounced mel-uh-SEE-nuh.