Where does “*orky” come from?

*orky (Proto-Slavic) comes from Proto-Germanic *arkō, from Latin arca, from Latin arceo, from Proto-Italic arkeō, from Proto-Indo-European h₂erk- — to protect, guard, hold, lock.

Ancestry of “*orky”, step by step

StepLanguageWordMeaning
1Proto-Germanic*arkōchest
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
Every word from Proto-Indo-European h₂erk- →Every word from Proto-Italic arkeō →Every word from Latin arceo →