It comes from the Greek word φιλος (philos), which means friend or loving.
Examples of words with the root "phile" include:
* Bibliophile: Lover of books
* Anglophile: Lover of England or English culture
* Autophile: Lover of oneself
* Musicophile: Lover of music
* Cinephile: Lover of movies
* Francophone: Speaker of French (literally "lover of French")