To divide into branches or subdivisions; as, to ramify an art, subject, scheme.

To shoot, or divide, into branches or subdivisions, as the stem of a plant.

To be divided or subdivided, as a main subject.

grow and send out branches or branch-like structures; "these plants ramify early and get to be very large"

divide into two or more branches so as to form a fork; "The road forks"

Latin ramus = a branch; and facere = to make; hence, to branch.