bifurcate (v.)

"to divide into two forks or branches," 1610s, from Medieval Latin bifurcatus, from Latin bi- "two" (see bi-) + furca "two-pronged fork, fork-shaped instrument," a word of unknown etymology. Related: Bifurcated; bifurcating.

"two-forked," 1835, from Medieval Latin bifurcatus, from Latin bi- "two" (see bi-) + furca "two-pronged fork," a word of unknown etymology. Nativized biforked in the same sense is from 1570s.