derogate >> /ˈdɛrəˌɡeɪt/
Definition: [verb] Detract from.
Example: this does not derogate from his duty to act honestly and faithfully
Definition: [verb] Deviate from (a set of rules or agreed form of behavior)
Example: one country has derogated from the Rome Convention
Definition: [verb] Disparage (someone or something)
Example: it is typical of Pirandello to derogate the powers of reason