Alternatively, the Urban Dictionary defines 'nour' as a very attractive and funny girl.

I find the Satoshi puzzle to be far more interesting than bitcoin itself. The level of operational security Satoshi has achieved is incredible - 'The wise one who lives in the middle' has proven to be a good choice of name. All things considered, I would not be at all surprised if Satoshi turns out to be a small team inside GCHQ, or somewhere similar.

Satoshi is Kira. Mystery solved.

I think the word "Nour", meaning "light" as people have pointed out, is also commonly used as a woman's name in the middle east. Maybe irrelevant but who knows?

It indeed means that in Arabic and a bunch of near by languages.