decoct vs cookery

decoct is not a noun while cookery is a noun.

Word	Noun	Adjective	Verb	Adverb
decoct	No	No	Yes	No
cookery	Yes	No	No	No

decoct (noun)	cookery (noun)
	the act of preparing something (as food) by the application of heat

decoct (verb)	cookery (verb)
extract the essence of something by boiling it
steep in hot water
be cooked until very little liquid is left