Interrelate (verb)

1. Have a relationship with one another.
2. Be related or connected to one another.

Origin:

Early 20th century: from inter- "between" + relate.

Examples:

1. The different parts of the system interrelate to create a cohesive whole.
2. The company interrelates the different departments to increase efficiency.
3. The two theories interrelate in a complex way.
4. The different events interrelate to tell the story.
5. The different variables interrelate to create the overall effect.