destress

As verbs the difference between stress and destress

is that stress is to apply force to (a body or structure) causing strain while destress is to reduce the stresses in a material.

As a noun stress

is the internal distribution of force per unit area (pressure) within a body reacting to applied forces which causes strain or deformation and is typically symbolised by σ.

As verbs the difference between reduce and destress

is that reduce is to bring down the size, quantity, quality, value or intensity of something; to diminish, to lower, to impair while destress is to reduce the stresses in a material.