Half- or Half is a prefix attached to the offspring of races sharing a mixed ancestry. These are often called half-breeds (but this is considered derogatory, though can be used as a technical term). In the RPG, the term 'half' does not refer to percentages, but rather is just indication of a being's mixed-ancestry no matter how far removed from original source. Thus, for example the offspring of a half-elf who coupled with a human, would still be considered half elf. This rule insures that in most circumstances that those of mixed ancestry are considered part of a wider race-category such as half-orc, half-elf, half-ogre, half-human (or share a combination of categories such as Half-orc half-ogre), despite how removed they are from their original racial ancestors.