1. To lighten or lessen the force or weight of. Should no others join capable to alleviate the expense. (Evelyn) Those large bladders . . . Conduce much to the alleviating of the body [of flying birds] (Ray)
2. To lighten or lessen (physical or mental troubles); to mitigate, or make easier to be endured; as, to alleviate sorrow, pain, care, etc.; opposed to aggravate. The calamity of the want of the sense of hearing is much alleviated by giving the use of letters. (bp. Horsley)
to alleviate, mitigate, Assuage, Allay. These words have in common the idea of relief from some painful state; and being all figurative, they differ in their application, according to the image under which this idea is presented. Alleviate supposes a load which is lightened or taken off; as, to alleviate one's cares. Mitigate supposes something fierce which is made mild; as, to mitigate one's anguish. Assuage supposes something violent which is quieted; as, to assuage one's sorrow. Allay supposes something previously excited, but now brought down; as, to allay one's suffering or one's thirst. To alleviate the distresses of life; to mitigate the fierceness of passion or the violence of grief; to assuage angry feeling; to allay wounded sensibility.