Ambitious plans have been unveiled for tackling some of London’s most congested roads. But while I applaud the ambition, I am less sure about the new word which these proposals may unleash on an unsuspecting world.

A major part of the plan would see the six-lane flyover at Brent Cross covered over with a new pedestrianised area, with the road disappearing under the ground instead. Then new proposed highway has been dubbed a ‘Flyunder’.

I have often said on the cyber pages of Wordability that new words emerge when there is a linguistic gap which needs filling. But there are already some quite serviceable words to cover such a road. How about underpass. Or tunnel.

Flyunder may tick the box of making the proposal sound sexier and more 21st century, but it is what it is – a great big road under the ground. And we all know that underground, you can’t fly. Sadly, if it had been announced that there were plans to build a Burrowunder, it just wouldn’t have had the same ring.