Partaker (noun)

A person who participates in something or shares in something with others.

Origin:

The word "partaker" comes from the middle english word "partakere" which means someone who shares in something, it is a person who participates in something or shares in something with others.

Examples:

1. The partakers of the feast were all seated at the table.
2. The partakers in the project were each given a specific task to complete.
3. You are cordially invited to be a partaker in the celebration of our anniversary.
4. He was a willing partaker in the scheme.
5. The partakers in the race had to run a distance of 10 km.