do they have to have all of them? I ask this because your question contradicts your examples. You said give me words containing F G I A R T Y. You give examples that contains some of those letters, but not all of them.
So my question is can are the parameters can we use a letter twice? or only once?
Fairy (but missing the G and T
Fair (but missing the G T and Y
These are examples if you can use anything it small.
You have
It
I
art
If I can pick and choice you should have a lot. so the only other question is can I use a letter twice? If I have to use all the letters to make one word.
gratify
******************* UPDATE *********************
7 letter word
GRATIFY
6 letter word(s):
RATIFY.
5 letter word(s):
AFRIT, FAIRY, GRAFT, GRIFT, TRAGI.
Good Luck, cant believe how much I dont want to work today to look this up. I would fire me if I wasnt the the boss. Hope this helps.