Where does “rechenen” come from?

rechenen (Middle High German) comes from Old High German rehhanōn, from Proto-Germanic rekanōną, from Proto-Indo-European h₃reǵ- — to straighten, to right oneself; right; just.

Ancestry of “rechenen”, step by step

StepLanguageWordMeaning
1Old High Germanrehhanōn—
2Proto-Germanicrekanōnąto count; to explain
3Proto-Indo-Europeanh₃reǵ-to straighten, to right oneself; right; just

Words derived from “rechenen”

Every word from Proto-Indo-European h₃reǵ- →Every word from Proto-Germanic rekanōną →Every word from Old High German rehhanōn →