precook vs cookery

precook is not a noun while cookery is a noun.

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

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

precook (verb)	cookery (verb)
cook beforehand so that the actual preparation won't take long