Scarlett Johanssonis sharing the story behind her son’s unique name.During an appearance onTheKelly Clarksonshow Monday, theBlack Widowactress shared how sonCosmo, 13 months — whom she shares with husbandColin Jost— got his unique name.Joking about his moniker, Johansson first said they “just threw a bunch of letters together.“Laughing, she then explained, “It just seemed like a refreshing — it’s so charming. Our friends all liked it.“She admitted the name took a while to grow on Jost’s mom. “She kept suggesting other versions of it and I’m like, ‘No, he’s already here, he’s out.’ “Johansson also noted that the name was a hit with her daughter,Rose Dorothy, 8. “I love that they’re both flowers,” Clarkson remarked.Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.“They are both flowers,” Johansson said. “Not a lot of people make that connection. Cosmo is a really sweet little flower that comes in different shades of orange and yellow.““That’s why my daughter liked it too,” she said of the connection between the names.Matt Winkelmeyer/GettyJohansson and Jost wedin an intimate ceremonyback in October 2020. The pairgot engaged in May 2019after two years of dating. TheSing 2actress debutedher 11-carat engagement ringthat July while taking the stage at San Diego Comic-Con.ROBYN BECK/AFP via GettyJohansson has previously beenopen about parenting her first child. In April 2021 she chatted with PEOPLE about how sheencourages Rose to eat healthy meals.“It’s funny, but I think I never really had to trick her into eating healthy,” said Johansson.“I think [it’s best] just letting kids discover food that way without making it feel like a chore. Everybody has a different palate,” she continued.“I’ve never tried to force my kid to eat anything she didn’t like, and I never tried to hide any foods from her because I was trying to pack in an extra carrot. Just offer a variety as much as possible.”

Scarlett Johanssonis sharing the story behind her son’s unique name.

During an appearance onTheKelly Clarksonshow Monday, theBlack Widowactress shared how sonCosmo, 13 months — whom she shares with husbandColin Jost— got his unique name.

Joking about his moniker, Johansson first said they “just threw a bunch of letters together.”

Laughing, she then explained, “It just seemed like a refreshing — it’s so charming. Our friends all liked it.”

She admitted the name took a while to grow on Jost’s mom. “She kept suggesting other versions of it and I’m like, ‘No, he’s already here, he’s out.’ "

Johansson also noted that the name was a hit with her daughter,Rose Dorothy, 8. “I love that they’re both flowers,” Clarkson remarked.

Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.

“They are both flowers,” Johansson said. “Not a lot of people make that connection. Cosmo is a really sweet little flower that comes in different shades of orange and yellow.”

“That’s why my daughter liked it too,” she said of the connection between the names.

Matt Winkelmeyer/Getty

Colin Jost and Scarlett Johansson attend the 35th Annual American Cinematheque Awards Honoring Scarlett Johansson at The Beverly Hilton on November 18, 2021 in Beverly Hills, California

Johansson and Jost wedin an intimate ceremonyback in October 2020. The pairgot engaged in May 2019after two years of dating. TheSing 2actress debutedher 11-carat engagement ringthat July while taking the stage at San Diego Comic-Con.

ROBYN BECK/AFP via Getty

Scarlett Johansson

Johansson has previously beenopen about parenting her first child. In April 2021 she chatted with PEOPLE about how sheencourages Rose to eat healthy meals.

“It’s funny, but I think I never really had to trick her into eating healthy,” said Johansson.

“I think [it’s best] just letting kids discover food that way without making it feel like a chore. Everybody has a different palate,” she continued.

“I’ve never tried to force my kid to eat anything she didn’t like, and I never tried to hide any foods from her because I was trying to pack in an extra carrot. Just offer a variety as much as possible.”

source: people.com