Not only stern and serious, but a little too severe.

Cassiopeia, the name of a mythological mother who became a stellar constellation, is challenging but intriguing, and has all those softening Cass nicknames available. And with all names Cass-related trending, Cassiopeia may be an unusual route to a stylish name.

Alcyone was the wife of Ceyx, but the happy pair angered the gods by calling each other Zeus and Hera. Ceyx's ship was sunk, Alcyone hurled herself into the sea, but then in sympathy for their grief the gods made the lovers halcyon birds or kingfishers.

Liliosa, one of the most extravagant forms of the ever-more-popular and varied Lily family, is an ancient saint's name that's a perfect candidate for revival by parents who love the double-L flower name trend but want a distinctive variation. Saint Liliosa was one of the martyrs of 9th century Cordoba, along with her husband Felix and cousins Aurelius and Natalia — all names newly fashionable in the modern world.

Since Morgan is used as--or more--frequently for girls as for boys, this feminization has fallen by the wayside. It drew some brief attention via the pop singer Morgana King.

The similar Morgiana appears in Tales from the Thousand and One Nights.