verb
deviate suggests a turning aside, often to only a slight degree, from the correct or prescribed course, standard, doctrine, etc. to deviate from the truth; swerve implies a sudden or sharp turning from a path, course, etc. the car swerved to avoid hitting us; veer, originally used of wind and ships, suggests a turning or series of turnings so as to change direction; diverge suggests the branching of a single path or course into two courses leading away from each other stay to the left when the road diverges; digress suggests a wandering, often deliberate and temporary, from the main topic in speaking or writing
See deviate in Webster's New World Roget's A-Z Thesaurus II
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