luck it vs risk

luck it is not a noun while risk is a noun.

Word	Noun	Adjective	Verb	Adverb
luck it	No	No	Yes	No
risk	Yes	No	Yes	No

As verbs, risk is a hypernym of luck it; that is, risk is a word with a broader meaning than luck it:

Other hypernyms of luck it include adventure, chance, gamble, hazard, run a risk, take a chance, take chances.

luck it (noun)	risk (noun)
	a venture undertaken without regard to possible loss or injury
	the probability of being exposed to an infectious agent
	the probability of becoming infected given that exposure to an infectious agent has occurred
	a source of danger; a possibility of incurring loss or misfortune

luck it (verb)	risk (verb)
act by relying on one's luck	expose to a chance of loss or damage
	take a risk in the hope of a favorable outcome