intransigence vs intransigency

intransigence and intransigency both are nouns.

Word	Noun	Adjective	Verb	Adverb
intransigence	Yes	No	No	No
intransigency	Yes	No	No	No

As nouns, intransigence and intransigency are synonyms defined as:

intransigence and intransigency: the trait of being intransigent; stubbornly refusing to compromise

intransigence (noun)	intransigency (noun)
the trait of being intransigent; stubbornly refusing to compromise	the trait of being intransigent; stubbornly refusing to compromise