This is the moment a mum discovered her husband had secretly named their daughter after a - Batman character.

Via, 27, and husband Carson, 25, both agreed Nora was the perfect name for their little girl.

But it wasn't until Thanksgiving over a year later that Via realised the true inspiration for the name.

The California couple, who did not want to give their surname, were watching an episode of Batman: The Animated Series.

It emerged then that the wife of one of Carson's favourite characters, Mr Freeze, is called - Nora.

Footage shows personal trainer Via's shocked reaction.

She said: "I was shocked at first because I had no idea."

"But then I thought it was cute. Honestly, I'm impressed he kept it so close to his chest for over a year!"

Carson, a wedding photographer, suggested the name Nora as soon as they found out they were having a girl.

Via loved its simplicity and meaning, especially since most of Carson's previous name ideas had been "dorky" movie references."

She said: "I was just happy we found a name we both loved."

"Every other name he pitched had some dorky movie reference, so I thought this one was safe."

Carson even made subtle references to the show by calling their daughter "snowflake," a nod to Mr. Freeze's icy persona. "

Via said: "Looking back, all the clues were there."

"His profile photo is Mr. Freeze on so many things – I should have known!"

"And he 'accidentally' proposed me on National Batman Day."

The revelation has only made Via love her daughter's name more.

She said: "Nora means ‘light of God,' and as Christians, that holds a special place in our hearts."

"It's funny that it also has this nerdy backstory tied to it. "

"He told me afterward how much he loved how deeply Mr. Freeze cared for his wife."

"But all future baby names will come with a thorough background check!"