Where does “berakná” come from?

berakná (Hungarian) comes from Hungarian berak, from Hungarian Rák, from Proto-Slavic rakъ, from Proto-Balto-Slavic rṓˀkas, from Proto-Indo-European wreh₃kʷos — looking backwards.

Ancestry of “berakná”, step by step

StepLanguageWordMeaning
1Hungarianberakto put in to place inside
2HungarianRákCancer
3Proto-Slavicrakъcrayfish
4Proto-Balto-Slavicrṓˀkas—
5Proto-Indo-Europeanwreh₃kʷoslooking backwards
Every word from Proto-Indo-European wreh₃kʷos →Every word from Proto-Balto-Slavic rṓˀkas →Every word from Proto-Slavic rakъ →