Where does “rookkidak” come from?

rookkidak (Proto-Finnic) comes from Proto-Germanic rōkijaną, from Proto-Indo-European reǵ- — to bind; straight, direct; straight, right.

Ancestry of “rookkidak”, step by step

Step	Language	Word	Meaning
1	Proto-Germanic	rōkijaną	to care, care for, take care of; to mind, heed,...
2	Proto-Indo-European	reǵ-	to bind; straight, direct; straight, right

rookkidak — Etymology, Origin & Word History | Etymology Explorer