derogation

/ˌderəˈɡeɪʃn/

dero·ga·tion

BrE /ˌderəˈɡeɪʃn/

NAmE /ˌderəˈɡeɪʃn/

[U, C] (formal)

an occasion when a rule or law is allowed to be ignored

words or actions which show that sb or sth is considered to have no worth