Gently old-fashioned stand-alone nickname that owes its popularity to mega popular Abigail.

Abby

Melodic and lively, Delilah has cut itself (mostly) free from its treacherous past to become a contemporary favorite. 
Though some people are naturally still put off by the deceptive Biblical figure, a large number of parents have been tempted by Delilah’s charms, meaning it now ranks in the Top 100 in the US, the UK, and Australia. 
Delilah is a Hebrew name, meaning “weak and languishing”, or, more appealingly, “delicate.” In the Old Testament, Delilah was the lover of Samson, but she betrayed him by cutting off the source of his strength – his hair – before handing him over to his enemies. 
Despite this negative namesake, Delilah has been occasionally used in the English-speaking world since the 1600’s when it was revived by the Puritans. 
It danced in and out of the charts during the 20th century, but by the mid 2000’s, it began to make significant gains. By 2018, it was in the Top 100, where it’s continued to rise ever since. 
With its alluring cadence, Delilah has been a hit in the music world. Camille Saint-Saens composed an opera based on the Biblical story in the 1880’s, while Tom Jones saw success in the 60’s with his song “Delilah.” 
Other artists who have sung about her include Queen, Chuck Berry, Sufjan Stevens, and Florence and the Machine, though it was after the release of the Plain White T’s song, “Hey there Delilah” that the name really jumped up the charts in 2007. 
Actors Harry Hamlin and Lisa Rinna were well ahead of the trend when they named their daughter Delilah back in 1998, and since then, it’s been a sparkling choice for celebrities. Kimberly Stewart, Benicio del Toro, Laurence Fishburne, Gina Torres, and Keira Knightley are among those who’ve selected Delilah for their daughters. 
Given to nearly 4000 babies every year, Delilah is still on the rise, while its international form, Dalila, remains popular in Italy and Bosnia and Herzegovina. 
If the sparkly, energetic sounds of Delilah do appeal to you, but the popularity or associations don’t sit right, then you could consider Tallulah, Keziah, Alaia, Azura, Talitha, or Fifer.

Delilah

Mia is an appealingly unfussy multicultural name that has enjoyed a meteoric rise up the charts and is now firmly among the ten <a href="https://nameberry.com/popular-names/nameberry/girls">top girl names</a>. Mia has surpassed its mother name Maria as the Number 1 <a href="https://nameberry.com/search/girls-names/m">girls' name starting with M</a>. 
 
Mia originated as a short form of Maria, which ultimately derived from the Hebrew name Miryam. In modern times, Mia has been used as a nickname for names including Amelia, Emilia, and Miriam. Mia is also an Italian and Spanish word meaning 'mine.'
 Mia's success is largely attributable to Mia Farrow--born Maria. Her name entered the Top 1000 for the first time in 1964, the very year that Farrow gained wide attention for her role on the nighttime soap Peyton Place.
 We see Mia as the daughter of Nina, or maybe Maya, and the granddaughter of Mary: a name that has something for nearly everyone. It works for the parent who wants a name that is simple and modern, and for those who seek a name with traditional roots. Mia sidesteps all the curlicues and ruffles attached to names like Isabella and Olivia, yet it's distinctly feminine.
 
And in some ways, Mia doesn't feel as trendy as its popularity standing might indicate. It's likable yet not really stand-out, a compromise choice for a lot of parents. Alternatives include a wide range of rhyming names that are less popular: Leah, Tea, Thea, Gia, Nia, Pia. 
 Kate Winslet is the mother of Mia Honey, and Ian Ziering is dad to Mia Loren.

Sadie started as a nickname for Sarah, but their images couldn't be more disparate. Where Sarah is serious and sweet, Sadie is full of sass and fun.
 Sadie has been soaring in popularity recently. Its last heyday was a century ago. She's been chosen by celebrities including Adam Sandler and Christina Applegate for their daughters.

 In popular culture, there's Somerset Maugham's Sadie Thompson, portrayed by Joan Crawford in Rain, Sadie Hawkins Day, where the girls get to ask the boys to dance, and songs like the Beatles' Sexy Sadie.

Sadie

Pizzaiabecky's list "Girl names" of 4 great name ideas: Abby - Sadie!

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