Venus (; Classical Latin: [ˈwɛnʊs]) is a Roman goddess whose functions encompass love, beauty, desire, sex, fertility, prosperity, and victory. In Roman mythology, she was the ancestor of the Roman people through her son, Aeneas, who survived the fall of Troy and fled to Italy. Julius Caesar claimed her as his ancestor. Venus was central to many religious festivals, and was revered in Roman religion under numerous cult titles.
The Romans adapted the myths and iconography of her Greek counterpart Aphrodite for Roman art and Latin literature. In the later classical tradition of the West, Venus became one of the most widely referenced deities of Greco-Roman mythology as the embodiment of love and sexuality. As such, she is usually depicted nude.
The Latin theonym Venus and the common noun venus ('love, charm') stem from a Proto-Italic form reconstructed as *wenos- ('desire'), itself from Proto-Indo-European (PIE) *wénh₁-os ('desire'; cf. Messapic Venas, Old Indic vánas 'desire'). Unlike the Proto-Indo-European form, which would have been a neuter s-stem, the Latin term has acquired the feminine gender, perhaps as a consequence of its relation to a female deity. The cognates of her name generally do not refer to goddesses in other Indo-European cultures, perhaps indicating that the term was innovatively applied to a specifically Italic divinity. Messapic Venas does, however, appear to refer to a divinity, though it is likely that this term was borrowed from an Italic source. Similarly, the name of the goddess is attested in Oscan ϝενζηι (wenzēi), which may also have been borrowed from Latin.
Derivatives include venustus ('attractive, charming'), venustās ('charm, grace'), venerius ('of Venus, erotic'), venerāre ('to adore, revere, honor, venerate, worship'), and venerātiō ('adoration'). Venus is also cognate with Latin venia ('favour, permission') and vēnor ('to hunt') through to common PIE root *wenh₁- ('to strive for, wish for, desire, love').
Venus has been described as perhaps "the most original creation of the Roman pantheon", and "an ill-defined and assimilative" native goddess, combined "with a strange and exotic Aphrodite". In the sanctuary of Mefitis at Rossano di Vaglio, the name Venus is mentioned with an accompanying epithet referring to the deity Mefitis. Her cults may represent the religiously legitimate charm and seduction of the divine by mortals, in contrast to the formal, contractual relations between most members of Rome's official pantheon and the state, and the unofficial, illicit manipulation of divine forces through magic. The ambivalence of her persuasive functions has been perceived in the relationship of the root *wenos- with its Latin derivative venenum ('poison'; from *wenes-no 'love drink' or 'addicting'), in the sense of "a charm, magic philtre".
Venus seems to have had no origin myth until her association with Greek Aphrodite. Venus-Aphrodite emerged, already in adult form, from the sea foam (Greek αφρός, aphros) produced by the severed genitals of Caelus-Uranus. Roman theology presents Venus as the yielding, watery female principle, essential to the generation and balance of life. Her male counterparts in the Roman pantheon, Vulcan and Mars, are active and fiery. Venus absorbs and tempers the male essence, uniting the opposites of male and female in mutual affection. She is essentially assimilative and benign, and embraces several otherwise quite disparate functions. She can give military victory, sexual success, good fortune and prosperity. In one context, she is a goddess of prostitutes; in another, she turns the hearts of men and women from sexual vice to virtue. Varro's theology identifies Venus with water as an aspect of the female principle. To generate life, the watery matrix of the womb requires the virile warmth of fire. To sustain life, water and fire must be balanced; excess of either one, or their mutual antagonism, is unproductive or destructive.
Prospective brides offered Venus a gift "before the wedding"; the nature of the gift, and its timing, are unknown. The wedding ceremony itself, and the state of lawful marriage, belonged to Juno – whose mythology allows her only a single marriage, and no divorce from her habitually errant spouse, Jupiter – but Venus and Juno are also likely "bookends" for the ceremony; Venus prepares the bride for "conubial bliss" and expectations of fertility within lawful marriage. Some Roman sources say that girls who come of age offer their toys to Venus; it is unclear where the offering is made, and others say this gift is to the Lares. In dice-games played with knucklebones, a popular pastime among Romans of all classes, the luckiest, best possible roll was known as "Venus".
Like other major Roman deities, Venus was given a number of epithets that referred to her different cult aspects, roles, and her functional similarities to other deities. Her "original powers seem to have been extended largely by the fondness of the Romans for folk-etymology, and by the prevalence of the religious idea nomen-omen which sanctioned any identifications made in this way."
Venus Acidalia, in Virgil's Aeneid (1.715–22, as mater acidalia). Servius speculates this "rare" and "strangely recondite epithet" as reference to a mooted "Fountain of Acidalia" (fons acidalia) where the Graces (Venus's daughters) were said to bathe; but he also connects it to the Greek word for "dart", "needle", "arrow", whence "love's arrows" and love's bitter "cares and pangs". Ovid uses acidalia only in the latter sense. Venus Acidalia is likely a literary conceit, formed by Virgil from earlier usages in which acidalia had no evident connection to Venus. It was almost certainly not a cultic epithet.
Venus Anadyomene (Venus "rising from the sea"), based on a once-famous painting by the Greek artist Apelles showing the birth of Aphrodite from sea-foam, fully adult and supported by a more-than-lifesized scallop shell. The Italian Renaissance painter Sandro Botticelli used the type in his The Birth of Venus. Other versions of Venus's birth show her standing on land or shoreline, wringing the sea-water from her hair.
Venus Barbata ("Bearded Venus"), mentioned in Servius's commentary on Virgil's Aeneid. Macrobius's Saturnalia describes a statue of Venus in Cyprus, bearded, with male genitalia but in female attire and figure (see also Aphroditus). Her worshippers cross-dressed - men wore women's clothes, and women wore men's. Macrobius says that Aristophanes called this figure Aphroditos. The Latin poet Laevius wrote of worshipping "nurturing Venus" whether female or male (sive femina sive mas). Several examples of Greek and Roman sculpture show her in the attitude anasyrmene, from the Greek verb anasyromai, "to pull up one's clothes" to reveal her male genitalia. The gesture traditionally held apotropaic or magical power.
Venus Caelestis (Celestial or Heavenly Venus), used from the 2nd century AD for Venus as an aspect of a syncretised supreme goddess. Venus Caelestis is the earliest known Roman recipient of a taurobolium (a form of bull sacrifice), performed at her shrine in Pozzuoli on 5 October 134. This form of the goddess, and the taurobolium, are associated with the "Syrian Goddess", understood as a late equivalent to Astarte, or the Roman Magna Mater, the latter being another supposedly Trojan "Mother of the Romans", as well as "Mother of the Gods".
Venus Calva ("Venus the bald one"), a legendary form of Venus, attested only by post-Classical Roman writings which offer several traditions to explain this appearance and epithet. In one, it commemorates the virtuous offer by Roman matrons of their own hair to make bowstrings during a siege of Rome. In another, king Ancus Marcius's wife and other Roman women lost their hair during an epidemic; in hope of its restoration, unafflicted women sacrificed their own hair to Venus.
Venus Cloacina ("Venus the Purifier"); a fusion of Venus with the Etruscan water goddess Cloacina, who had an ancient shrine above the outfall of the Cloaca Maxima, originally a stream, later covered over to function as Rome's main sewer. The rites conducted at the shrine were probably meant to purify the culvert's polluted waters and noxious airs. In some traditions, Titus Tatius was responsible for the introduction of lawful marriage to Rome, and Venus-Cloacina promoted, protected and purified sexual intercourse between married couples.