Patronus

noun2

1. •
   A person considered one’s protector.

   • Black women are my patronus, and surrounding myself with villages of black women has been my biggest form of self-care. — 2017
2. •
   Something associated with a person, usually an animal.

   • When I’ve got something good between my teeth, I shake it until it gives in. My Patronus is a terrier. It’s like I can see the glinting prize at the end of the race, far in the distance. — 2016