The suffix <em>-phile</em> is used for making nouns and adejctives that describe a person who loves or likes something a lot. In other words, it means someone who likes or enjoys certain things.
In this case, the root word is <em>biblio </em>which means book.
Whe the root word and the suffix are combined, <em>biblio + phile</em>, it forms a new word which is used to refer to a person who loves books. It also refers to that person that collects them.
