See diverge in Webster's New World Roget's A-Z Thesaurus II
verb
To separate into branches or branchlike parts:
bifurcate, branch (out), divide, fork, ramify, subdivide. See partTo be unlike or dissimilar:
differ, disagree, vary. Idiom: be at variance. See sameTo turn away from a prescribed course of action or conduct:
depart, deviate, digress, stray, swerve, veer. (Archaic) err. See approach, correctTo turn aside, especially from the main subject in writing or speaking:
deviate, digress, divagate, ramble, stray, wander. Idiom: go off at (or on) a tangent. See approach
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