*h₂(e)r(ḱ)‑s
http://lila-erc.eu/data/lexicalResources/BrillEDL/id/etymon/pie0086 an entity of type: Etymon
Etymology for: arx (la0117)
*h₂(e)r(ḱ)‑s
blank nodes
*h₂(e)r(ḱ)‑s