The name of Juno is probably of the same root as Jupiter, and differs from it only in its termination. As Jupiter is the king of heaven and of the gods, so Juno is the queen of heaven, or the female Jupiter. The Romans identified at an early time their Juno with Hera, with whom she has indeed many resemblances, but we shall endeavour here to treat of the Roman Juno exclusively, and to separate the Greek notions [HERA] entertained by the Romans, from those which are of a purely Italian or Roman nature. Juno, as the queen of heaven, bore the surname of Regina, under which she was worshipped at Rome from early times, and at a later period her worship was solemnly transferred from Veii to Rome, where a sanctuary was dedicated to her on the Aventine. (Liv. v. 21, 22, xxii. 1, xxvii. 37; Varr. de L. L. v. 67.) She is rarely described as hurling the thunderbolt, and the main feature of her character is, that she was to the female sex all that Jupiter was to the male, and that she was regarded as the protectress of every thing connected with marriage. She was, however, not only the protecting genius of the female sex in general, but accompanied every individual woman through life, from the moment of her birth to the end of her life. Hence she bore the special surnames of Virginalis and Matrona, as well as the general ones of Opigena and Sospita (Ov. Fast. vi. 33; Horat. Carm. iii. 4, 59; Serv. ad Aen. viii. 84; August. de Civ. Dei, iv. 11; Festus, p. 343, ed. Müller), under which she was worshipped both at Lanuvium and at Rome. (Liv. xxiv. 10, xxvii. 3, xxxii. 30; Ov. Fast. ii. 56; Cic. de Div. i. 2.) On their birthday women offered sacrifices to Juno surnamed Natalis, just as men sacrificed to their genius natalis (Tibull. iv. 6. 13. 15); but the general festival, which was celebrated by all the women, in honour of Juno, was called Matronalia (Dict. of Ant. s. v.), and took place on the 1st of March. Her protection of women, and especially her power of making them fruitful, is further alluded to in the festival Populifugia (Dict. of Ant. s.v.) as well as in the surname of Februarius, Februata, Februta, or Februalis. (Fest. s.v. Februarius, p. 85, ed. Müller; comp. Ov. Fast. ii. 441.) Juno was further, like Saturn, the guardian of the finances, and under the name of Moneta she had a temple on the Capitoline hill, which contained the mint. (Liv. vi. 20.) Some Romans considered Juno Moneta as identical with Mnêmosynê, but this identification undoubtedly arose from the desire of finding the name Moneta a deeper meaning than it really contains. [MONETA.] The most important period in a woman's life is that of her marriage, and, as we have already remarked, she was believed especially to preside over marriage. Hence she was called Juga or Jugalis [JUGA], and had a variety of other names, alluding to the various occasions on which she was invoked by newly-married people, such as, Domiduca, Iterduca, Pronuba, Cinxia, Prema, Pertunda, Fluonia, and Lucina. (Virg. Aen. iv. 166, 457, with Serv. note; Ov. Heroid. vi. 43; August. de Civ. Dei, vi. 7, 11, vii. 3; Arnob. iii. 7, 25, vi. 7, 25; Fest. s. vv. The month of June, which is said to have originally been called Junonius, was considered to be the most favourable period for marrying. (Macrob. Sat. i. 12; Ov. Fast. vi. 56.) Juno, however, not only presided over the fertility of marriage, but also over its inviolable sanctity, and unchastity and inordinate love of sexual pleasures were hated by the goddess. Hence a law of Numa ordained that a prostitute should not touch the altar of Juno, and that if she had done so, she should with dishevelled hair offer a female lamb to Juno. (Gell. iv. 3.) Women in childbed invoked Juno Lucina to help them (Plaut. Aulul. iv. 7, 11; Plut. Quaest. Rom. 77; Propert. v 1, 95; Arnob. iii. 9, 21, 23), and after the delivery of the child, a table was laid out for her in the house for a whole week (Tertull. de Anim. 39), for newly-born children were likewise under her protection, whence she was sometimes confounded with the Greek Artemis or Eileithyia. (Catull. xxxiv. 13; Dionys. Hal. iv. 15; comp. MATUTA.)
As Juno has all the characteristics of her husband, in so far as they refer to the female sex, she presides over all human affairs, which are based upon justice and faithfulness, and more especially over the domestic affairs, in which women are more particularly concerned, though public affairs were not beyond her sphere, as we may infer from her surnames of Curiatia and Populonia. [Comp. EMPANDA.] In Etruria, where the worship of Juno was very general, she bore the surname of Cupra, which is said to have been derived from the name of a town, but it may be connected with the Sabine word cyprus, which, according to Varro (de L. L. v. 159), signified good, and also occurs in the name of vicus Cyprius. At Falerii, too, her worship was of great importance (Dionys. i. 21), and so also at Lanuvium, Aricia, Tibur, Praeneste, and other places. (Ov. Fast. vi. 49, 59; Liv. v. 21, x. 2; Serv. ad Aen. vii. 739; Strab. v. p. 241.) In the representations of the Roman Juno that have come down to us, the type of the Greek Hera is commonly adopted.