derogation vs loggerhead

derogation and loggerhead both are nouns.

Word	Noun	Adjective	Verb	Adverb
derogation	Yes	No	No	No
loggerhead	Yes	No	No	No

derogation (noun)	loggerhead (noun)
(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law	very large carnivorous sea turtle; wide-ranging in warm open seas
a communication that belittles somebody or something	a stupid person; these words are used to express a low opinion of someone's intelligence