Which substance has a chemical symbol that is derived from a Latin name oxygen calcium hydrogen potassium?

Calcium has a chemical symbol Ca from the Latin Word "calx" meaning lime; Hydrogen has a chemical symbol H, derived from the Greek Words "hydro" (water) and "genes" (forming); Potassium has a chemical symbol K, derived from the Latin Word "kalium"; Oxygen has a chemical symbol O, derived from the Greek Words "oxys" (acid) and "genes" (forming).