onomancy
/ˈɑnəˌmænsi/
noun
- The practice of predicting a person's future or character based on their name.
- In ancient times, some rulers consulted onomancy before naming their children.
- She read a book about onomancy and tried to guess her friends' personalities from their names.
- Onomancy is rarely taken seriously today, but it remains a curious part of folklore.