Strength

From Unofficial Ansalon Wiki

Strength is part of your character Score, it is how strong your character currently is.

You find it displayed as: STR: 14(22) [18] The first being Permanent or Trained stat, the second is current stat due to equipment or spell effects, the last being how high you can train your maximum.

Strength affects how much you can carry, how much damage you do in melee combat, how heavy of items you can wield, size of bows you can fire, and other things.