Wikipedia
Varman (surname)
Varman or its variants , Verma , Varman , , Burman or Barman are surnames that are used by Kshatriya castes in India & South-East Asia.
In Sanskrit language, Varma is the masculine form of the word for "Shield, Defensive armour".
The word Varman derives from Varamban as in the Chera king title Vana-varamban, meaning one whose kingdom is bounded by the sky. Its usage can be traced back to the Sangam period.