A person with such a sexual preference is a gerontophile. The word gerontophilia was coined in 1901 by psychiatrist Richard von Krafft-Ebing. It derives from Greek: geron, meaning “old person” and philie, meaning “love”.

What do you call a man who likes teenage girls?

Ephebophilia is when an adult is mostly or only sexually attracted to post-pubescent teenagers—usually those in the age range 15–19. Adults with this attraction are called ephebophiles. Ephebophilia is not just the sexual attraction to teenage partners but is when an adult prefers such sexual partners.