tripartite
Word family adverbtripartitelynountripartismtripartitionadjectivetripartite
tri·par·tite /traɪˈpɑːtaɪt $ -ˈpɑːr-/ adjectiveadj [only before noun] formal PGinvolving three parts, groups etc 三方之间的tripartite agreement/talks etc a tripartite agreement between France, Britain, and Germany 法国、英国和德国之间的三方协定
Origin tripartite (1400-1500) Latin tripartitus, from tri- + partitus “divided”