"origin" is not an element.
Calcium is an element, it's symbol is Ca, and like everything else except for hydrogen it was formed by nuclear fusion in the heart of a star which has since blown up.
The symbol for calcium is Ca, from the first two letters of the English name of the element. (By convention, the first letter of an element symbol must be a capital letter, even though the name of the element is not necessarily capitalized.)
Origin.
If you meant "element" as in a chemical element, there is no element with the symbol "ef" in the periodic table.
The origin of an earthquake is called the hypocenter or focus. This is the point underground where the earthquake rupture begins.
The origin name for yttrium is ytterby.
German
Americium is an artificial element, prepared in laboratories.
Its origin is form Latin. The Latin word for silver is argentium
The origin of the element Barium is from the greek work "penis" meaning heavy
It is something that is colorless and is an element.
Meitnerium is an artificial chemical element.
Uranium decay chains
Salt is not an element. It is the compound Sodium Chloride NaCl. Origin: Old English sealt
the latin word for flint, Silex. :)
Africa
The name of the element einsteinium is derived from the name of the great well-known physicist of Jewish origin - Albert Einstein.But the name Einstein is of German origin (one stone).