interdependency

Etymology

inter- + dependency

noun

1. A mutual dependence, connection or correlation.
   All life on our planet exists only because we are enmeshed within a complex web of interdependent ecological and social systems. Executives must remove their blinkers and recognise this natural law of interdependency. 2012-05-18, Bob Doppelt, “Business leaders need systemic thinking for sustainability”, in The Guardian
   In a superbly argued and richly detailed account of the interdependencies of slavery and revolution throughout the Americas, as well as the religious traditions of Protestantism, Catholicism and Islam (many of the west Africans were educated Muslims), […] 2014-04-16, Michael Moorcock, “The Empire of Necessity: The Untold History of a Slave Rebellion in the Age of Liberty”, in The Guardian