pal·li·ate / ˈpalēˌāt/ • v. [tr.] make (a disease or its symptoms) less severe or unpleasant without removing the cause: treatment works by palliating symptoms. ∎ allay or moderate (fears or suspicions): this eliminated, or at least palliated, suspicions aroused by German unity. ∎ disguise the seriousness or gravity of (an offense): there is no way to excuse or palliate his dirty deed.DERIVATIVES: pal·li·a·tion / ˌpalēˈāshən/ n.pal·li·a·tor / -ˌātər/ n.