The word is "indulgence." FYI.
In fact as posted on another thread here, the Nicene Creed, something the Eastern Orthodox and the Catholic Church has some contentions about, was passed by a majority vote as early as 350+AD against the wishes of the Eastern Orthodox.
You need to re-read your history. Both East and West approved of the Nicene Creed, even the Nicene-Constantinoplian edition. It is only later that the Filioque becomes an issue.
SD
From the article below:
"No clear record exists of the process by which the word Filioque was inserted into the Creed of 381 in the Christian West before the sixth century."
You can find the history of the Nicene Creed at Free Republic.