Right-hand (adjective)

1. Located or positioned on the right side.
2. Most trusted or relied upon person or assistant.
3. Of or pertaining to the right side of the body or an object.

Origin:

From the old english word 'riht', meaning correct or proper.

Examples:

1. She is my right-hand person when it comes to organizing events.
2. The right-hand page of the book has the next chapter.
3. I injured my right-hand wrist in the fall.