trifurcate
adjective
tri·fur·cate (ˌ)trī-ˈfər-kət 
-ˌkāt;
ˈtrī-(ˌ)fər-ˌkāt
: having three branches or forks : trichotomous
trifurcate
ˈtrī-(ˌ)fər-ˌkāt
intransitive verb trī-ˈfər-
trifurcation
ˌtrī-(ˌ)fər-ˈkā-shən
noun 
Example Sentences
Recent Examples on the Web That is the tragedy of the three cities: the artificial walls that trifurcate us. 
WIRED, 30 Aug. 2022
WIRED, 30 Aug. 2022 Word History
Etymology
Latin trifurcus, from tri- + furca fork
First Known Use
circa 1831, in the meaning defined above