For' The ROOT of the term 'Be Partial To, With 'FOR'' is the four letter word 'FOR'. This term is used to express a preference FOR something or someone. It is often used to describe a situation in which someone has a strong inclination towards a particular thing or person. FOR example, one might say 'I'm partial to this restaurant' or 'I'm partial to my friend'. In other words, it is a way of expressing favoritism.