Re: Neptune, Poseidon, Danu, etc.

I saw a theory that Poseidon somes from *potis - da: = "lord land" =
"lord of the earth", which is the wrong way round for IE because it is
an over-literal loan-translation of a Semitic god name "Ba`al `Ars." =
"lord of the earth", the name being because he was blamed for causing
earthquakes by some such method as jabbing with his trident at the
underwater slopes of the islands.