Latin
The name comes from the Latin calx, meaning lime (as in calcium oxide, not the citrus fruit).
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.
british
Calcium was discovered by Sir Humphrey Davy in 1808 in England. Origin of name: from the Latin word "''calx''" meaning "''lime''" It is one of the primary constitutents of bones, shells and limestone, and also temporary hard water. When temporary hard water is boiled it forms a white film on the container. It is also used in cement and mortar.
Calcium Sulfite
Calcium Sulfide
Calcium bromide, CaBr2 , is the only name
The scientific name for Calsium Chloride is Calcium Dichloride
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.)
CaC2 is Calcium Carbide. Ca2C does not exist.
Calcium Chromate.
The chemical name for CaO is Calcium Oxide.The common name for calcium oxide is quick lime.