uhm... what? This program seems to be so full of flaws, lets start at the first line (programs run from top to bottom:
ew_word = word+first+pyg
word, first and pyg are undefined, this will cause an error.
first = word 
word is again undefined.
original = word[1:len(new_word)]
both word and new_word are undefined.
if len(original) > 0 and original.isalpha():
no indention after the if statement?
again, incorrect indention and printing blank? Maybe you should revisit some of the earlier exercises of pyglatin?