It is taken from the name of the season between summer and spring
το φθινόπωρο to fthinoporo
autum wintery in autum or winter about/around there
lego batman 3 will come out in autum/fall 2014. It will be called Lego Batman 3: Beyond Gotham
autumn
celebration turkey Autum
The silent letter in "autumn" is the "n". It is not pronounced in the word.
fall
something
September and October
Autum rocks!
September
love is bad