interdependency vs interdependence

interdependency and interdependence both are nouns.

Word	Noun	Adjective	Verb	Adverb
interdependency	Yes	No	No	No
interdependence	Yes	No	No	No

As nouns, interdependency and interdependence are synonyms defined as:

interdependency and interdependence: a reciprocal relation between interdependent entities (objects or individuals or groups)

Other synonyms of interdependency include mutuality.

interdependency (noun)	interdependence (noun)
a reciprocal relation between interdependent entities (objects or individuals or groups)	a reciprocal relation between interdependent entities (objects or individuals or groups)