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Perception actor Scott Wolf and wife Kelley welcomed their third child, a daughter, on May 24th. Lucy Marie joins brothers Miller William, 18 months, and Jackson Kayse, 5.

WHAT IT MEANS: Light

WHERE IT ORIGINATED: In use since the Middle Ages, Lucy is an English short form variant of Lucia and other names deriving from it, such as Lucille and Lucinda.

POTENTIAL NICKNAMES: Lou or Lulu!

KNOW THIS: Currently the 66th most common girls name in the U.S., Lucy has never ranked outside of the Top 600 names in the country.

POP CULTURE CONNECTION: Lucy is one of the most diverse names in pop culture—from ’50s show I Love Lucy, to Beatles hit Lucy in the Sky with Diamonds, to resident know-it-all character Lucy Van Pelt in the Peanuts comics.

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