/ˌintərdiˈpendənt/
Adjective
1. Mutually dependent; reliant on one another. (wiktionary.org)
2. relating to two or more people or things dependent on each other. (thefreedictionary.com)
Word origin: Latin inter (prep., adv.) “among, between, betwixt, in the midst of,” + from French dépendant (adjective and noun), properly present participle of dépendre “to hang down,” also “to depend,” from Latin dependentem