Very much enjoyed shouting this word at the filming of QI! I literally learn something new from Stephen Fry every day :)

I definitely think rob_burrows got it right! "Hendiadys". Checked it. Erm, It means "the use of 2 words joined with 'and' to express a single idea, for example ["inaudible and fun"]"

"Anxieties"? Damn, I'm sure I'm wrong, but one day I'll be right, and I'll make myself a medal.

hendiadys sounds like the word

no you BOGOF (get it)

Sounded like hen die of this to me.