Nicole Kidman and Keith Urban chose a “really adorable and original” baby name for newborn daughter Sunday Rose, baby name expert Pam Satran, coauthor of Cool Names and The Baby Name Bible, tells Usmagazine.com.

“Sunday [is] a choice to rival Tom and Katie’s Suri and Brad and Angelina’s Shiloh,” Satran says.

Kidman, 41, gave birth to Sunday – who weighed 6 pounds, 7 ounces – on Monday morning. It is the first child for the actress and Urban, 40. (Kidman has two adopted children – Connor, 13, and Isabella, 15 – with ex Tom Cruise.)

“Sunday is one of the next generation of word names,” explains Satran. “But it also harkens back to the ancient tradition of day-naming as practiced by many African tribes and originally brought to America by the early slaves.”

Other famous day names? Actress Tuesday Weld, the character Wednesday Addams and Robinson Crusoe’s Friday.

“Some modern parents like Sunday because of its spiritual element, which connects to such other starbaby names as Angelina and Brad’s son Pax and pop names like Nevaeh,” Satran adds.

Sunday emulates Suri because both “unusual first names begin with Su and have two syllables,” says Satran.

The name also represents Whitsundays, an island chain off the coast of Queensland, Australia – where Kidman and Urban celebrated her 40th birthday – and it is a day of prayer in Kidman’s Catholic religion.

Satran says Rose is the “starbaby middle name of the decade.”

The daughters of Michelle Pfeiffer, Teri Hatcher, Ewan McGregor and Eric Clapton all have Rose as their middle name. Sylvester Stallone, Satran points out, has three daughters with the middle name Rose.

The couple’s decision to give Sunday Rose both of their last names “is a signal that this is a marriage of equals,” Satran says.

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