Final word from a French deity (5)
I believe the answer is:
adieu
'final word' is the definition.
'adieu' can be an answer for 'word' (I have seen 'Last word' mean 'adieu' so perhaps 'word' could also mean 'adieu'). I am not certain of the 'final' bit.
'a french deity' is the wordplay.
'french deity' becomes 'dieu' (I can't explain this - if you can you should give a lot more credence to this answer).
'a'+'dieu'='ADIEU'
'from' is the link.
Can you help me to learn more?
(Other definitions for adieu that I've seen before include "Leave" , "Fare thee well!" , "See you later" , "left, making this?" , "Farewell (French)" .)