Noun
weather helm (plural weather helms)
(nautical) A keeping of the helm somewhat aweather when a vessel shows a tendency to come into the wind while sailing.
Any action that reduces the angle of heel of a boat that is reaching or beating to windward will help reduce excessive weather helm. Source: Internet
If weather helm builds further, it can limit the ability of the helmsperson to steer the boat, which can be turned towards but not effectively away from the wind. Source: Internet
Lee helm, the opposite of weather helm, is generally considered to be dangerous because the vessel turns away from the wind when the helm is released, thus increasing forces on the sail at a time when the helmsperson is not in control. Source: Internet
Basically anything that moves the center of effort of the sails more forward will have the effect of reducing weather helm. Source: Internet