Where does “arcanum” come from?

arcanum (Latin) comes from Latin arcānus, from Latin arca, from Latin arceo, from Proto-Italic arkeō, from Proto-Indo-European h₂erk- — to protect, guard, hold, lock.

arcanum (Latin): secret or mystery

Definitions

  1. secret or mystery

Ancestry of “arcanum”, step by step

StepLanguageWordMeaning
1Latinarcānushidden, secret, private, mysterious
2Latinarcachest, box, coffer, safe; coffin; ark
3LatinarceoI shut up, enclose; box in; I keep off, ward off;...
4Proto-Italicarkeōto contain
5Proto-Indo-Europeanh₂erk-to protect, guard, hold, lock

Words derived from “arcanum

Every word from Proto-Indo-European h₂erk-Every word from Proto-Italic arkeōEvery word from Latin arceo