continency vs continence

continency and continence both are nouns.

Word	Noun	Adjective	Verb	Adverb
continency	Yes	No	No	No
continence	Yes	No	No	No

As nouns, continency and continence are synonyms defined as:

continency and continence: the exercise of self constraint in sexual matters

continency (noun)	continence (noun)
the exercise of self constraint in sexual matters	the exercise of self constraint in sexual matters
	voluntary control over urinary and fecal discharge