"PIt" . "121145" . _:B734d79a7X3A195d1e795f5X3A6563 . "Etymology for: quercus (la1353)" . "*kʷerkʷu/o‑" . "*kʷerkʷu/o‑" . . _:B734d79a7X3A195d1e795f5X3A6563 "*kʷerkʷu/o‑" .