*omb‑(e/o)l‑
http://lila-erc.eu/data/lexicalResources/BrillEDL/id/etymon/pit1288 an entity of type: Etymon
Etymology for: umbilīcus (la1724)
*omb‑(e/o)l‑ >> *omb‑elo‑
blank nodes
*ombi-
*omb‑(e/o)l‑
*omb‑elo‑
ombi-lo-