potentiality vs potency

potentiality and potency both are nouns.

Word	Noun	Adjective	Verb	Adverb
potentiality	Yes	No	No	No
potency	Yes	No	No	No

As nouns, potentiality and potency are synonyms defined as:

Other synonyms of potentiality include potential.

potentiality (noun)	potency (noun)
an aptitude that may be developed	capacity to produce strong physiological or chemical effects
the inherent capacity for coming into being	the power or right to give orders or make decisions
	the state of being potent; a male's capacity to have sexual intercourse
	the inherent capacity for coming into being