divagation > define

noun

• A message that departs from the main subject.
  • synonyms: digression, aside, excursus, parenthesis
• A turning aside (of your course or attention or concern. )
  • usage: "a diversion from the main highway"; "a digression into irrelevant details"; "a deflection from his goal"
  • synonyms: diversion, deviation, digression, deflection, deflexion