Where does “ryht” come from?

ryht (Old English) comes from Proto-Germanic rehtaz, from Proto-Indo-European h₃reǵtós, from Proto-Indo-European h₃reǵ- — to straighten, to right oneself; right; just.

Ancestry of “ryht”, step by step

StepLanguageWordMeaning
1Proto-Germanicrehtazright, straight; morally upright, just
2Proto-Indo-Europeanh₃reǵtósstraightened, right, upright
3Proto-Indo-Europeanh₃reǵ-to straighten, to right oneself; right; just
Every word from Proto-Indo-European h₃reǵ- →Every word from Proto-Indo-European h₃reǵtós →Every word from Proto-Germanic rehtaz →