priming vs readying

priming and readying both are nouns.

Word	Noun	Adjective	Verb	Adverb
priming	Yes	No	No	No
readying	Yes	No	No	No

As nouns, readying is a hypernym of priming; that is, readying is a word with a broader meaning than priming:

priming: the act of making something ready
readying: the activity of putting or setting in order in advance of some act or purpose

Other hypernyms of priming include preparation.

priming (noun)	readying (noun)
the act of making something ready	the activity of putting or setting in order in advance of some act or purpose
any igniter that is used to initiate the burning of a propellant
the first or preliminary coat of paint or size applied to a surface