Where does “Samothrazien” come from?

Samothrazien (German) comes from Latin Samothracia, from Ancient Greek Σαμοθρᾴκη, from Ancient Greek Θρᾴκη, from Ancient Greek Θρᾷξ, from Ancient Greek θράσσω, from Proto-Indo-European dʰr̥h₂-gʰ-yé-.

Ancestry of “Samothrazien”, step by step

Step	Language	Word	Meaning
1	Latin	Samothracia	Samothrace
2	Ancient Greek	Σαμοθρᾴκη	Samothrace, East Macedonia and Thrace, Greece
3	Ancient Greek	Θρᾴκη	Thrace, near which Samothrace is situated
4	Ancient Greek	Θρᾷξ	an inhabitant of Thrace; a Thracian
5	Ancient Greek	θράσσω	to trouble, stir
6	Proto-Indo-European	dʰr̥h₂-gʰ-yé-	—

Every word from Proto-Indo-European dʰr̥h₂-gʰ-yé- →Every word from Ancient Greek θράσσω →Every word from Ancient Greek Θρᾷξ →