Lily is the most popular of the popular delicate century-old flower names now making a return, thanks to its many irresistible attributes: a cool elegance and a lovely sound, a symbol of purity and innocence, and a role in Christian imagery.

A versatile classic, Lucy is both sweet and solid, a saint's name, and the heroine of several great novels. First fashionable in England and Wales, Lucy is now a popular choice in the US, The Netherlands, and New Zealand.

A lovely musical name (remember the old Eric Clapton-Derek & the Dominos song?), Layla's seen a significant surge in popularity, partly partly all names with a double L are stylish, and partly because all the forms of the name push it into the Top 15 for girls.

Lillian has ranked among the US Top 100 for the past 20 years, making it Lily's less popular but more grown-up cousin.

Strong but sweet, Leah is a classic name that doesn't feel dull or dusty. It's got plenty of dignity, grace, and pluck, making it a solid choice in the 21st century.

The Lyla spelling variation has now superseded the original Lila — the former remains on the rise while the latter is consistently falling in popularity.

Lucia is a lush, rich Latinate equivalent of Lucy, popular in Spain and throughout Latin America and also a cross-cultural favorite. You might be surprised to know that Lucia has ALWAYS ranked among the Top 1000 girl names in the US, though she's really taken off only since the turn of this century.

Lilah may be a simple spelling variation of Lila— itself an alternative form of the Arabic Leila — or you might think of it as a shortening of Delilah or an Anglicization of the Hebrew Lilach, which means lilac. Whatever the root, it's a beautiful and stylish name. The final h adds balance or creates needless complications, depending on your viewpoint.

Lila is one of the girl names with a double l sound — Lila, Lola, Layla, Leila, Lily et al — that have caught on in a major way., Delicate yet dynamic, Lila has a slightly international flair.

Lilly may contain one L too many for some people, though this secondary spelling of a name that's become wildly popular is still a popular choice. And the Lilly spelling does feel a bit less wispy, a bit more like a name as opposed to a mere flower, than the slender and delicate Lily. Lilly suggests the long-form Lillian, but it doesn't need to be an abbreviation for anything; Lilly can stand on its own.

Leila was popularized in the West by the poet Byron, who used it in his poem Don Juan for a ten-year-old Turkish girl. Leila also appears as a fairy in the Gilbert & Sullivan comic opera Iolanthe.

A hot starbaby name – chosen by Kelly Ripa, Chris Rock, Lisa Bonet, Denise Richards and Charlie Sheen, Carnie Wilson, and Annie Lennox, and used as the nickname of Madonna's Lourdes – Lola manages to feel fun and sassy without going over the top. Be warned, though: "Whatever Lola wants, Lola gets," to quote a song from the show Damn Yankees.

Lilith is derived from the Akkadian word lilitu meaning "of the night." In Jewish folklore she is portrayed as Adam's rejected first wife, who was turned into a night demon for refusing to obey him. Lilith is unrelated to most other Lil- names, with the exception of Lilita, which is the Latvian variation.

This pet form of Helena and other ena-ending names, long used as an independent name, is attracting notice again as an option both multicultural and simple. Lena was a Top 100 name from 1880 to 1920.

Laura is a hauntingly evocative perennial, never trendy, never dated, feminine without being fussy, with long-standing literary links. All this makes Laura a more solid choice than any of its more decorative counterparts and one of the most classic girl names starting with L.

Lauren was derived from Laurence, an English name from the Roman family name Laurentius, meaning "from Laurentum." Laurentum, an ancient Italian city, got its name from the Latin word laurus, meaning "bay laurel."

Popularized in the 1940s by Lana (born Judy) Turner, today Lana is synonymous with American singer-songwriter Lana Del Rey. Although it has been rising steadily since the early 2000s, Lana still sits in the popularity "sweet spot" – familiar, but not overused. Simple, sleek and seamlessly international, it makes a great choice.

Beguiling and lovely, Laila is one of the lilting variations of Leila and Layla. It's the name of the former-boxer daughter of Muhammad Ali and of actor Shawn Wayans. In Finland, the Sami people use this in place of the Scandinavian name Helga.

A strong, grounded choice that still has plenty of energy and charm, Leona is the feminine form of Leon, itself derived from the Greek word for "lion". Associated with courage, leadership, and royalty — and the star sign of July and August — Leona is popular in Croatia and Sweden, but familiar across the US, the UK, and continental Europe.

The capital of England makes a solid and attractive twenty-first-century choice in the US where it is currently in the Top 1000. Given to nearly 1000 girls and 200 boys each year, it is a unisex option that has been in slow decline since its peak in 2013. Conjuring up images of Big Ben, red phone boxes, and the London Eye for some, but perhaps the rush hour commute and grey skies for others, London is far less popular in the UK and other English-speaking countries.