Con‐tem″per (kŏn‐tĕm″pẽr), v. t. [L. contemperare, -temperatum; con- + temperare to temper. Cf. Contemperate.] To modify or temper; to allay; to qualify; to moderate; to soften.
The antidotes... have allayed its bitterness and contempered its malignancy.
Johnson.