derivation vs drawing off

derivation and drawing off both are nouns.

Word	Noun	Adjective	Verb	Adverb
derivation	Yes	No	No	No
drawing off	Yes	No	No	No

As nouns, drawing off is a hypernym of derivation; that is, drawing off is a word with a broader meaning than derivation:

derivation: drawing off water from its main channel as for irrigation
drawing off: act of getting or draining something such as electricity or a liquid from a source

Other hypernyms of derivation include drawing.

As nouns, drawing off is a hypernym of derivation; that is, drawing off is a word with a broader meaning than derivation:

derivation: drawing of fluid or inflammation away from a diseased part of the body
drawing off: act of getting or draining something such as electricity or a liquid from a source

Other hypernyms of derivation include drawing.

derivation (noun)	drawing off (noun)
the act of deriving something or obtaining something from a source or origin	act of getting or draining something such as electricity or a liquid from a source
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