Creosote from both oil shale and petroleum, and are known as oil-tar creosote when derived from oil tar, and as water-gas-tar creosote when derived from the tar of water gas. Creosote also has been made from pre-coal formations such as lignite, yielding lignite-tar creosote, and peat, yielding peat-tar creosote. The term creosote has a broad range of definitions depending on the origin of the coal tar oil and end use of the material. With respect to wood preservatives, the United States Environmental Protection Agency (EPA) considers the term creosote to mean a pesticide for use as a wood preservative meeting the
English words of Greek origin πρεσβύτερος ("presbýteros" 'elder'), and "church" < Old English "cirice", "circe" < probably κυριακή [οἰκία] ("kȳriakḗ [oikía]" 'lord's [house]'). In some cases, the orthography of these words was later changed to reflect the Greek – and Latin – spelling: "e.g.", "quire" was respelled as "choir" in the 17th century. Sometimes this was done incorrectly: "ache" is from a Germanic root; the spelling "ache" reflects Samuel Johnson's incorrect etymology from Greek ἄχος. Many more words were borrowed by scholars writing in Medieval and Renaissance Latin. Some words were borrowed in essentially their original meaning, often transmitted through classical Latin: "topic", "type", "physics",