Mothering Sunday cards are using 'Mom' instead of 'Mum' as a language expert warns of the Americanisation of Britain.

Dating back to the 16th century, it was once a religious day to spend with ones family but now the British celebration is turning American.

For the first time Paperchase is selling 'Mom' cards alongside its traditional mother and mum selections.

Almost 10 per cent of its range this year feature the word 'Mom', a study by the Telegraph found.

It is the first UK card retailer to make the move and language experts believe it is due to the popularity of American children's shows influencing the way youngsters speak.