"PIt" . "119558" . _:B734d79a7X3A195d1e795f5X3A25d4 . "Etymology for: probrum (la1311)" . "*pro‑fr‑o‑" . "*pro‑fr‑o‑" . . _:B734d79a7X3A195d1e795f5X3A25d4 "*pro‑fr‑o‑" .