Fafnir Fafnir /ˈfæfnɪr/

noun

1. (Norse mythology) the Norse dragon that guarded a treasure and was slain by Sigurd  ( Fafnir )
   (Norse mythology) the Norse dragon that guarded a treasure and was slain by Sigurd
    Fafnir, once a dwarf, became a fearsome dragon guarding a treasure.
   Fafnir, once a dwarf, became a fearsome dragon guarding a treasure.