Trivial name for example, hydrogen ("water-producing"), oxygen ("acid-producing"), nitrogen ("soda-producing"), bromine ("stink"), and argon ("no reaction") were based on Greek roots, while the names of iodine and chlorine were derived from the Greek words for their characteristic colors. Indium, rubidium, and thallium were similarly named for the colors of particular lines in their emission spectra. Iridium, which forms compounds of many different colors, takes its name from "iris", the Latin for "rainbow". The noble gases have all been named for their origin or properties. Helium comes from the Greek "helios", meaning "sun" because it was first detected as a line in the
Greek name Modern Greek Enlightenment and the development of Greek nationalism, names from antiquity became popular again. Family names may be patronymic in origin or else based on occupation, location, or personal characteristic. These origins are often indicated by prefixes or suffixes. Traditionally a woman used a feminine version of her father's family name, replacing it with a feminine version of her husband's family name on marriage. In modern Greece, a woman keeps her father's family name for life but may use a husband's name. In official documents in modern Greece, people are given three names: a given name, a patronymic and