The Keeping Up With The Kardashians star told People that Reign had always been among her favourite baby names: Reign for a boy but spelled Rain for a girl.
"I actually had the name on our list with Mason. Then with Penelope, I had it on the list but spelled R-A-I-N. Once I found out I was having a boy, we just changed the spelling again," she explained.
Kourtney and long-time boyfriend Scott Disick welcomed Reign Aston Disick in December 2014 – on the same day their son Mason turned five! Daughter Penelope is two years old.
Reality star Kourtney recently explained that she didn't travel to Armenia with sisters Kim and Khloe as she wasn't ready to travel with three very young children.
Kim and Khloe have been exploring their father's roots in Armenia over the past week, visiting sights in the capital Yerevan and paying their respects at the memorial for victims of the Armenian Genocide. They also had a meeting with the country's prime minister and Kim's husband Kanye West performed a free concert for locals.
Explaining her absence, Kourtney said: "I wish I was in Armenia with my sisters on #siblingsday! I didn't end up going to Armenia because it was making me too anxious with three young children. I do wish that I could have experienced the trip with my sisters but I do know that we will all go to Armenia together someday."
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