Trivial name of vitriol" (sulfuric acid), and "cream of tartar" (potassium bitartrate) borrowed their language from the kitchen. Many more names were based on color; for example, hematite, orpiment, and verdigris come from words meaning "blood-like stone", "gold pigment", and "green of Greece". Some names are based on their use. Lime is a general name for materials combining calcium with carbonates, oxides or hydroxides; the name comes from a root "sticking or adhering"; its earliest use was as mortar for construction. Water has several systematic names, including "oxidane" (the IUPAC name), "hydrogen oxide", and "dihydrogen monoxide" (DHMO). The latter was the basis
What Child Is This? What Child Is This? "What Child Is This?" is a Christmas carol whose lyrics were written by William Chatterton Dix, in 1865. At the time of composing the carol, Dix worked as an insurance company manager and had been struck by a severe illness. While recovering, he underwent a spiritual renewal that led him to write several hymns, including lyrics to this carol that was subsequently set to the tune of "Greensleeves", a traditional English folk song. Although it was written in Great Britain, the carol is more popular in the United States than in its country of origin today.