Grip
Stat
Grip is the number of hands you need to hold and use an item.
Weapon Grip
Your Weapon’sWeapon Item · Weapon · Tier 1Weapons are Objects you use to Attack. Grip is the number of hands you need to hold and AttackAttack ActionAttack is the Action you use to strike at a foe. with it. A Grip marked + can be held in that number of hands (0 or 1) but needs one additional hand to AttackAttack ActionAttack is the Action you use to strike at a foe..
Source Player Codex