"Naming a baby -- who will one day be an adult out in the world -- is hard," Murgatroyd mused. "It took months and months to find a name that both Maks and I loved and kind of embodied what he means to us."
"It was a really special moment for Maks to have his dad be a part of something we created," she continued.
The professional dancers, who got engaged in December 2015, welcomed Shai on Jan. 4. In a statement they released to ET, the happy new parents said, "This is, without a doubt, the best thing that has ever happened to us!" Check out the video below to hear about their adorable new baby boy.