perseveration vs perseverance

perseveration and perseverance both are nouns.

Word	Noun	Adjective	Verb	Adverb
perseveration	Yes	No	No	No
perseverance	Yes	No	No	No

As nouns, perseveration and perseverance are synonyms defined as:

perseveration and perseverance: the act of persisting or persevering; continuing or repeating behavior

Other synonyms of perseveration include persistence.

perseveration (noun)	perseverance (noun)
the act of persisting or persevering; continuing or repeating behavior	the act of persisting or persevering; continuing or repeating behavior
the tendency for a memory or idea to persist or recur without any apparent stimulus for it	persistent determination