Corposant (noun) (archaic)
An instance of St Elmo’s Fire appearing on the mast or rigging of a ship.
What a great archaic word, left over from the days of sailing the world and superstition. St. Elmo’s Fire was considered to be a lucky sign for sailors, but was actually just a glow from the build up of electric discharge on a ship’s mast during storms.
“Corposant is no more than electrical discharge but it gave sailors great hope in stormy conditions.”