Statistics (Stats)- How your character measures up mentally and physically. 
A list is below:

Wisdom       - How wise you are. Helps in combat, and when regaining mana.
Constitution - How healthy and robust you are. Determines how many hit points
               you gain per level, and how well you heal.
Dexterity    - How agile you are. How many movement points you gain per level, 
               and how well you dodge attacks, pick locks, and kick without 
               falling over.
Charisma     - How personable your character is. This can affect shop prices
               and charm spells involving the living.
Strength     - How physically mighty your character is. Determines how much 
               stuff you can carry, how heavy a weapon you can wield, and what 
               kind of bonus is added when  you hit things. 
Intelligence - How smart you are. Determines how much mana you gain per level,
               and how much you regain per hour, if you can outsmart your 
               opponent and hit him more often, and if you're undead, helps 
               control your followers.