Where does “roka” come from?

roka (Turkish) comes from Ottoman Turkish روقه, from Greek ρόκα, from Italian Rocca, from Gothic rukka, from Proto-Germanic rukkô, from Proto-Indo-European rukn-, from Proto-Indo-European ruk-.

roka (Turkish): rocket

Definitions

rocket

Ancestry of “roka”, step by step

Step	Language	Word	Meaning
1	Ottoman Turkish	روقه	—
2	Greek	ρόκα	rocket; distaff
3	Italian	Rocca	fortress, stronghold
4	Gothic	rukka	—
5	Proto-Germanic	rukkô	spinning wheel, distaff
6	Proto-Indo-European	rukn-	—
7	Proto-Indo-European	ruk-	—

Every word from Proto-Indo-European ruk- →Every word from Proto-Indo-European rukn- →Every word from Proto-Germanic rukkô →