Atticize \At"ti*cize\, v. t. [Gr. ?.] To conform or make conformable to the language, customs, etc., of Attica. Atticize \At"ti*cize\, v. i. 1. To side with the Athenians. 2. To use the Attic idiom or style; to conform to the customs or modes of thought of the Athenians.