Where does “ракоскорпион” come from?

ракоскорпион (Russian) comes from Russian скорпион, from Latin scorpiō, from Ancient Greek σκορπίος, from Proto-Indo-European (s)ker-, from Proto-Indo-European sek- — to cut, cut off, sever.

ракоскорпион (Russian): eurypterid

Definitions

  1. eurypterid

Ancestry of “ракоскорпион”, step by step

ракоскорпион traces back through two separate lines of ancestry.

via Russian скорпион

StepLanguageWordMeaning
1Russianскорпионscorpion
2Latinscorpiō—
3Ancient Greekσκορπίοςscorpion; scorpionfish; scorpion furze
4Proto-Indo-European(s)ker-to cut off; to turn, bend
5Proto-Indo-Europeansek-to cut, cut off, sever

via Russian ра́к

StepLanguageWordMeaning
1Russianра́к—
2Proto-Slavicrakъcrayfish
3Proto-Balto-Slavicrṓˀkas—
4Proto-Indo-Europeanwreh₃kʷoslooking backwards
Every word from Proto-Indo-European sek- →Every word from Proto-Indo-European (s)ker- →Every word from Ancient Greek σκορπίος →