Prince Harry has revealed that “grandma” was one of his son Archie’s first words.

The Duke of Sussex revealed in his new mental health series The Me You Can’t See with Oprah Winfrey. ‘I got a photo of her in his nursery, and it was one of the first words that he said — apart from “mama”, “papa”, it was then “grandma”. Grandma Diana.

‘It’s the sweetest thing, but at the same time, it makes me really sad because she should be here.’

Only a few months ago, he revealed in an interview with his pal James Corden that his son’s first word was “crocodile.”

When chatting with Oprah Winfrey, he also stated that Archie likes the term “hydrate.”

‘My son is now over a year and a half, he is hysterical, he’s got the most amazing personality, he’s already putting two, three words together, he’s already singing songs,’ he told Corden.

‘His first word was “crocodile”. Three syllables!’

James was impressed, calling it a “big word,” to which Harry replied, ‘It is indeed. Not sure I can even manage three syllables on a particularly groggy morning.’

There has never been any dispute about Princess Diana’s importance in the hearts of the Sussex family.

In the sixth episode of the programme, Harry reflected on his late mother, stating “I wish she could’ve met Meghan. I wish she was around for Archie.”

Meghan celebrated her first US Mother’s Day on May 6, 2019, only six days after Archie’s birth, and tweeted a lovely snap of her newborn’s little toes as they had a stroll in their garden at Frogmore Cottage in Windsor.

The post on the Sussex Royal’s Instagram was a touching homage to Harry’s late mother, Princess Diana: “Paying tribute to all mothers today – past, present, mothers-to-be, and those lost but forever remembered. We honour and celebrate each and every one of you.”

Meghan and Archie also posed with forget-me-nots, Princess Diana’s favorite flower.

The soon-to-be father-of-two also released footage of his child playing on the beach and on the swings at home in The Me You Can’t See.

In one video, the youngster is seen sitting on a swing with his back to the camera, while another person, maybe Prince Harry, is seen swinging alongside him.

Elsewhere in the documentary series, the pair revealed color footage of their son Archie running along a beach with Meghan Markle, 39, that was initially seen in black-and-white during their explosive Oprah interview.

However, royal admirers could only get a glimpseof  Archie’s face on both instances.