Monday derived sometime before 1200 from monedæi, which itself developed from Old English (around 1000) mōnandæg and mōndæg (literally meaning "moon's day"), which is cognate to other Germanic languages, including Old Frisian mōnadeig, Middle Low German and Middle Dutch mānendach (modern Dutch Maandag), Old High German mānetag (modern German Montag), and Old Norse mánadagr (Swedish and Norwegian nynorsk måndag. Danish and Norwegian bokmål mandag). The Germanic term is a Germanic interpretation of Latin lunae days ("day of the moon")
Tuesday derives from the Old English "Tiwesdæg" and literally means "Tiw's Day"[1]. Tiw is the Old English form of the Proto-Germanic god *Tîwaz, or Týr in Norse, a god of war and law[2][3]. In the Indic languages of Pali and Sanskrit, as well as in Thailand, the name of the day is taken from Angaraka ('one who is red in colour')[4] a style (manner of address) for Mangala, the god of war, and for Mars, the red planet.
Wednesday comes from the Middle English Wednes dei, which is from Old English Wōdnesdæg, meaning the day of the English god Woden (Wodan), a god in Anglo-Saxon England until about the 7th century. Wēdnes dæg is like the Old Norse Oðinsdagr ("Odin's day"), which is an early translation of the Latin dies Mercurii ("Mercury's day"), and reflects the widespread association of Woden with Mercury going back to Tacitus.
Thursday comes from the Old English Þunresdæg, "Thunor's Day" (with loss of -n-, first in northern dialects, from influence of Old Norse Þorsdagr, meaning "Thor's Day"). Thunor and Thor are derived from the Proto-Germanic god Thunaraz, god of thunder. Most Germanic languages name the day after this god: Torsdag in Danish, Norweigan, and Swedish, Donnerstag in German or Donderdag in Dutch.
Friday comes from the Old English frīgedæg, meaning the day of Frige the Old English form of Frigg. In most Germanic languages the day is named after freyja—such as Frīatag in Old High German, Freitag in Modern German, Freyjudagr in Old Norse, Vrijdag in Dutch, Fredag in Swedish, Norwegian, and Danish—but Freyja and Frigg are frequently identified with each other.

Frigg spinning the clouds
Saturday is the only day of the week in which the English name comes from Roman mythology. The English names of all of the other days of the week come from Germanic polytheism. In India, Saturday is Shanivar, based on Shani, the Vedic god manifested in the planet Saturn. In the Thai solar calendar of Thailand, the day is named from the Pali word for Saturn, and the color associated with Saturday is purple. The Celtic languages also name this day for Saturn: Irish an Satharn or dia Sathuirn, Scottish Gaelic Disathairne, Welsh dydd Sadwrn, Breton Sadorn or disadorn.
Sunday is derived sometime before 1250 from sunedai, which itself developed from Old English (before 700) Sunnandæg (literally meaning "sun's day"), which is cognate to other Germanic languages, including Old Frisian sunnandei, Old Saxon sunnundag, Middle Dutch sonnendach (modern Dutch zondag), Old High German sunnun tag (modern German Sonntag), and Old Norse sunnudagr (Danish and Norwegian søndag, and Swedish söndag). The Germanic term is a Germanic interpretation of Latin dies solis ("day of the sun"), which is a translation of the Greek heméra helíou.[3] The p-Celtic Welsh language also translates the Latin "day of the sun" as dydd Sul.
Sunna or Sól
Ceiling Mosaic - Christus helios, the mosaic of Sol in Mausoleum M, which is interpreted as Christ-Sol (Christ as the Sun).
Detail of vault mosaic in the Mausoleum of the Julii. From the necropolis under St. Peter's Mid-3rd century Grotte Vaticane, Rome.
Mosaic of the Vatican grottoes under St. Peter's Basilica, on the ceiling of the tomb of the Julii (Pope Julius I). Representation of Christ as the sun-god Helios or Sol Invictus riding in his chariot. Dated to the 3rd century AD.
"Early Christian and pagan beliefs are combined in this third century mosaic of Christ as a sun-god. The triumphant Christ/god, with rays shooting from his head, is pulled aloft by two rearing horses in his chariot. The Dionysian vines in the background become the vines of Christ."On the venerable day of the Sun let the magistrates and people residing in cities rest, and let all workshops be closed. In the country however persons engaged in agriculture may freely and lawfully continue their pursuits because it often happens that another day is not suitable for grain-sowing or vine planting; lest by neglecting the proper moment for such operations the bounty of heaven should be lost. - Constantine I . He was a pagan when he made this decree. Observation of Sunday as the day of rest is a pagan decree.


The Horse of God - The Trundholm Sun chariot
From the late
Nordic Bronze Age - 1700 - 500 BCE.
The Nordic Bronze Age centres around
Bornholm or
Burgundaholmr, "the island of the Burgundians.
The
RUS/Rutheni originated from this area. They settled in France around Aveyron and the Midi region and the Haut Vallye d'Aude.