derivation vs historical linguistics

derivation and historical linguistics both are nouns.

Word	Noun	Adjective	Verb	Adverb
derivation	Yes	No	No	No
historical linguistics	Yes	No	No	No

derivation (noun)	historical linguistics (noun)
the act of deriving something or obtaining something from a source or origin	the study of linguistic change
drawing off water from its main channel as for irrigation
drawing of fluid or inflammation away from a diseased part of the body
inherited properties shared with others of your bloodline
a line of reasoning that shows how a conclusion follows logically from accepted propositions
(historical linguistics) an explanation of the historical origins of a word or phrase
the source or origin from which something derives (i.e. comes or issues)
(descriptive linguistics) the process whereby new words are formed from existing words or bases by affixation