what does P.S. stand for?

[nesteaschool]

in the end of a letter, if you find there's something more you want to say, usually you write P.S. then you'll write what you want. So, what does P.S. stand for? And is my writing right? :-?

 

[Latoof]

I asked my teacher about it long time ago and he told me that it stands for "Post Script".

P.S. Enjoy your day...;-)

 

[Tdol]

Originally, it was taken from Latin- Post Scriptum.;-)