You could read about Balerion the Dread.
Game of Thrones Season 3, Episode 10
Balerion the Dread.
Game of Thrones Season 7, Episode 2
forged in the fiery breath
of Balerion the Dread.
Game of Thrones Season 3, Episode 6
I know. But still it filled me with DREAD.
Game of Thrones Season 4, Episode 8
you feeling such DREAD
at the prospect of me getting what I want.
Game of Thrones Season 3, Episode 6