dissertate
1. [ verb ] talk or hold forth formally about a topic
Synonyms: discourse
Examples:

"The speaker dissertated about the social politics in 18th century England"

Related terms: talk dissertation
Similar spelling:   dissertation
  dishearten
  discrete
  disheartened
  disheartening
  disarrayed
  Dickert
  discreet
  discreteness
  discredited
  disorder
  discretion
  discredit
  dessert