The most direct derivation is from Serap, to burn, whence Seraph; since Serapis was so represented; and since it is evident that Moses cabbalized in translating names, he may have done so here ; and if this, meaning a column of measured time, evince connexion with the pyramid, the name Boore-Muth, a cavern or well of Pluto, is a no less weighty than curious derivation.