Where does “rediōn” come from?

rediōn (Old High German) comes from Old High German reda, from Proto-Germanic raþjǭ, from Proto-Indo-European h₂reh₁-, from Proto-Indo-European h₂er- — to fit, to fix, to put together.

Ancestry of “rediōn”, step by step

rediōn traces back through 3 separate lines of ancestry.

via Old High German reda

StepLanguageWordMeaning
1Old High Germanreda—
2Proto-Germanicraþjǭaccount, reasoning
3Proto-Indo-Europeanh₂reh₁-to think, reason; to arrange
4Proto-Indo-Europeanh₂er-to fit, to fix, to put together

via Old High German radia

StepLanguageWordMeaning
1Old High Germanradiaspeech, view, opinion; speech, talking
2Proto-Germanicraþjōaccountability, speech

via Old High German redia

StepLanguageWordMeaning
1Old High Germanredia—
Every word from Proto-Indo-European h₂er- →Every word from Proto-Indo-European h₂reh₁- →Every word from Proto-Germanic raþjǭ →