Question

The members of the religious section ostracised the----------who had abandoned their faith

Answer 1

Here is your answer buddy,

The members of the religious section ostracized the $suppliant \:$ who had abandoned their faith.

Here I have used the word suppliant bcoz it means a person who makes a plea in front of authorities and this word is appropriate for the fill in the blanks.

Hope this helps you.
Be Brainly.