Intercessor (noun)

1. A person who pleads or mediates on behalf of another, especially in religious contexts.
2. A person who makes requests for help or support to a higher authority on behalf of another person.

Origin:

Late middle english: from old french, from latin intercessor, from intercedere 'intercede', from inter- 'between' + cedere 'go'. the current sense of the word dates from the late middle english period.

Examples:

1. The intercessor prayed for the sick man's recovery.
2. The intercessor was an advocate for the poor and marginalized in society.
3. The intercessor acted as a mediator between the two conflicting parties.
4. The intercessor was a powerful figure in the medieval court, using their influence to sway the king's decisions.
5. The intercessor was respected for their wisdom and dedication to helping others.