Where does “rūna” come from?

rūna (Old Dutch) comes from Proto-Germanic rūnō, from Proto-Celtic rūnā — secret, mystery.

Ancestry of “rūna”, step by step

StepLanguageWordMeaning
1Proto-Germanicrūnōsecret, mystery; rune
2Proto-Celticrūnāsecret, mystery

Words derived from “rūna”

Every word from Proto-Celtic rūnā →Every word from Proto-Germanic rūnō →
rūna — Etymology, Origin & Word History | Etymology Explorer