Weapon Armor Class - increase chance of blocking physical attacks
Armor Class - increase your chance of blocking physical attacks
Accuracy - increase your chance of physical hits connecting
Defense - boost all of your defensive rolls in combat
Offense - boost all of your offensive rolsl in combat
Stealth
Stealth - decrease your chance of being seen by nearby creatures
Perception - increase your chance of seeing stealthy creatures
Damage Boost
Physical Boost Percent - boost all physical damage by a %
Magical Boost Percent - boost all magical damage by a %
Healing Percent - boost all outgoing healing by a %
[Element] Boost Percent - boost all [Element] damage by a %
Spell Critical Percent - increase your chance of a spell doing critical damage
Damage Reflect / Mitigation
Physical Reflect - reflect physical damage when attacked
Magical Reflect - reflect magical damage when attacked
Spell Reflect Chance - increase chance of reflecting spells back to their caster
Mitigation - sliding scale damage mitigation (max 75); if your level is lower than the attacker you take more damage and if your level is higher than the attacker you take less damage
Magical Resist - resist magical damage
Physical Resist - resist physical damage
[Element] Resist - resist [Element] damage
Miscellaneous
Threat Multiplier - increase the amount of threat generated by a %
Damage Factor - increase the amount of damage you do; this stat is a multiplier and is used commonly to balance creatures by setting it to a multiplier like 0.2 (for 20% damage)
[Skill] Bonus - increase your [Skill] by an amount