1) Digress 2) Rove 1) Digress 2) Stray 3) Tell 4) To digress in speech 5) To wander 6) Wander 7) Wander off course 
to digress; wander about
divagate 1. To lose clarity, or to turn aside; especially, from the main subject of attention or course of argument in writing, thinking, or speaking. 2. To wander or drift around; to ramble; to digress.
to wander; stray. · to digress in speech.