"PIE" . "126678" . _:B9ef87e5288d7e4625fb1ba6e6805d1cd . "Etymology for: sulcus (la1612)" . "*solk‑o‑" . "*solk‑o‑" . . _:B9ef87e5288d7e4625fb1ba6e6805d1cd "*solk‑o‑" .