Coeval is a noun that refers to a person or roughly the same age as oneself.

The Latin prefix C-O means ‘jointly,’ while the Latin word aevum (EYE voom) means ‘age.’ A person’s coeval is a person of the same generation. Here’s an example of the word in use:

As a teenager, I expected my parents to object to my taste in music, but it shocked me when a coeval like Mindy thought the music I enjoyed was awful. You’d think somebody my age would have similar tastes.