based on the score 9letters beg with vi early church father alters a vowel in the beginning 6 letters beginning with or i think it is origin but don't know why any help much appreciated thanks
That is a very rambling puzzle. Please separate YOUR words from the words of the clues. Please separate the words of one clue from the words of another.
I suspect you are mixing up two clues here.
HINT: Press ENTER or RETURN to start a fresh line.
'Beg with vi' (presumably shorthand for Beginning with the letters Vi) seems to refer to the first clue given of 'based on the score = answer is vicennial ... not 'twentieth'
So, as gen2 says ....'a very rambling' question .....