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 words like "metabolize", though composed of a Greek root and a Greek suffix, are modern compounds. Greek and English share many Indo-European cognates. In some cases, the cognates can be confused with borrowings. For example, the English "mouse" is cognate with Greek μῦς /mys/ and Latin "mūs", all from an Indo-European word "*mūs"; they are not borrowings. Similarly, "acre" is cognate to Latin "ager" and Greek αγρός, but not a borrowing; on the other hand, the prefix "agro-" is a borrowing from Greek, and the prefix "agri-" a borrowing from Latin. Many are used verbatim in English texts—"et cetera" ("etc."),