What does the term 'pros' mean?
1) Forward to, i.e. toward
2)(Genitive case) the side of, i.e. pertaining to
3)(Dative case) by the side of, i.e. near to
4)(Accusative case, usually) the place, time, occasion, or respect (which is the destination of the relation, i.e. whither or for which it is predicated)