Complex sentence: Kartha or Karthavu is a Hindu Nair title name which means Lord and it was conferred by the king to some powerful Nair families who enjoyed Raja or Naduvazhi status.
Split into simpler sentences: Kartha or Karthavu is a Hindu Nair title name that means Lord. It was conferred by the king to powerful Nair families who enjoyed Raja or Naduvazhi status.