So our Skyrim main character (possibly a female Argonian ) is Dragonborn
But what exactly does that mean, how does it happen.
We know that the Emperors of Tamriel used to be dragonborn up until Martin Septim. But there was a more or less clear bloodline since Tiber Septim

And furthermore reading the lost Prophecy of the Nerevarine in Morrowind it states, that he is
"But Dragon-born and far-star-marked,"

So if the nerevarine or Martin Septim had found a wordwall in skyrim, would they have been able to learn the language?

Or are we talking about different ways of being dragon born?

Martin was dragon-blood (of the septim dynasty) and not essentially a dragonborn. His power came from the breaking of the pact with Akatosh. The nerevarine may have been actually dragon-born, but there is no evidence to evince this statement.

So what is dragon born (I am not looking for something like a pregnancy test here but the mythological explanation)?

So there is a difference between dragonborn and of the dragon blood (.. Septim mostly)?

Try taking this thread to the Lore Section of the forum, the amount of stuff they know is unbelieveable.

http://www.gamesas.com/forum/16-elder-scrolls-lore/