<P> Except for modern Portuguese, the Romance languages preserved the Latin names, except for the names of Sunday, which was replaced by (dies) Dominicus (Dominica), i.e. "Day of the Lord" and of Saturday, which was named for the Sabbath . In Corsican, the Saturday is known either by Sabatu or De Sadorn . </P> <Table> <Tr> <Th> Day: (see Irregularities) </Th> <Th> Sunday Sōl (Sun) </Th> <Th> Monday Luna (Moon) </Th> <Th> Tuesday Mars (Mars) </Th> <Th> Wednesday Mercurius (Mercury) </Th> <Th> Thursday Iuppiter (Jupiter) </Th> <Th> Friday Venus (Venus) </Th> <Th> Saturday Saturnus (Saturn) </Th> </Tr> <Tr> <Th> Italian </Th> <Td> domenica </Td> <Td> lunedì </Td> <Td> martedì </Td> <Td> mercoledì </Td> <Td> giovedì </Td> <Td> venerdì </Td> <Td> sabato </Td> </Tr> <Tr> <Th> Old Portuguese </Th> <Td> domingo </Td> <Td> lues </Td> <Td> martes </Td> <Td> mércores </Td> <Td> joves </Td> <Td> vernes </Td> <Td> sábado </Td> </Tr> <Tr> <Th> Galician </Th> <Td> domingo </Td> <Td> luns </Td> <Td> martes </Td> <Td> mércores </Td> <Td> xoves </Td> <Td> venres </Td> <Td> sábado </Td> </Tr> <Tr> <Th> Spanish </Th> <Td> domingo </Td> <Td> lunes </Td> <Td> martes </Td> <Td> miércoles </Td> <Td> jueves </Td> <Td> viernes </Td> <Td> sábado </Td> </Tr> <Tr> <Th> Romanian </Th> <Td> duminică </Td> <Td> luni </Td> <Td> marți </Td> <Td> miercuri </Td> <Td> joi </Td> <Td> vineri </Td> <Td> sâmbătă </Td> </Tr> <Tr> <Th> French </Th> <Td> dimanche </Td> <Td> lundi </Td> <Td> mardi </Td> <Td> mercredi </Td> <Td> jeudi </Td> <Td> vendredi </Td> <Td> samedi </Td> </Tr> <Tr> <Th> Occitan </Th> <Td> dimenge </Td> <Td> diluns </Td> <Td> dimarts </Td> <Td> dimècres </Td> <Td> dijòus </Td> <Td> divendres </Td> <Td> dissabte </Td> </Tr> <Tr> <Th> Catalan </Th> <Td> diumenge </Td> <Td> dilluns </Td> <Td> dimarts </Td> <Td> dimecres </Td> <Td> dijous </Td> <Td> divendres </Td> <Td> dissabte </Td> </Tr> <Tr> <Th> Asturian </Th> <Td> domingu </Td> <Td> llunes </Td> <Td> martes </Td> <Td> miércoles </Td> <Td> xueves </Td> <Td> vienres </Td> <Td> sábadu </Td> </Tr> <Tr> <Th> Lombard (Milanese) </Th> <Td> domenega </Td> <Td> lunedì </Td> <Td> martedì </Td> <Td> mercoldì </Td> <Td> giovedì </Td> <Td> venerdì </Td> <Td> sabet </Td> </Tr> <Tr> <Th> Lombard (Bresciano) </Th> <Td> duminica </Td> <Td> lunedé </Td> <Td> martedé </Td> <Td> mercoldé </Td> <Td> gioedé </Td> <Td> venerdé </Td> <Td> sabot </Td> </Tr> <Tr> <Th> Ligurian </Th> <Td> doménga </Td> <Td> lunedì </Td> <Td> mâtesdì </Td> <Td> mâcordì </Td> <Td> zéuggia </Td> <Td> venardì </Td> <Td> sàbbo </Td> </Tr> <Tr> <Th> Venetian </Th> <Td> domenega </Td> <Td> luni </Td> <Td> marti </Td> <Td> mèrcore </Td> <Td> zioba </Td> <Td> vénare </Td> <Td> sabo </Td> </Tr> <Tr> <Th> Friulian </Th> <Td> domenie </Td> <Td> lunis </Td> <Td> martars </Td> <Td> miercus </Td> <Td> joibe </Td> <Td> vinars </Td> <Td> sabide </Td> </Tr> <Tr> <Th> Neapolitan </Th> <Td> dummeneca </Td> <Td> lunnerì </Td> <Td> marterì </Td> <Td> miercurì </Td> <Td> gioverì </Td> <Td> viernarì </Td> <Td> sàbbatu </Td> </Tr> <Tr> <Th> Sardinian </Th> <Td> dominiga </Td> <Td> lunis </Td> <Td> martis </Td> <Td> mercuris </Td> <Td> iobia </Td> <Td> chenabura </Td> <Td> Sappadu </Td> </Tr> <Tr> <Th> Sicilian </Th> <Td> dumínica </Td> <Td> luni </Td> <Td> marti </Td> <Td> mércuri </Td> <Td> juvi </Td> <Td> vénniri </Td> <Td> sábbatu </Td> </Tr> <Tr> <Th> Corsican </Th> <Td> dumenica </Td> <Td> luni </Td> <Td> marti </Td> <Td> màrcuri </Td> <Td> ghjovi </Td> <Td> vènnari </Td> <Td> sàbatu or sadorn </Td> </Tr> </Table> <Tr> <Th> Day: (see Irregularities) </Th> <Th> Sunday Sōl (Sun) </Th> <Th> Monday Luna (Moon) </Th> <Th> Tuesday Mars (Mars) </Th> <Th> Wednesday Mercurius (Mercury) </Th> <Th> Thursday Iuppiter (Jupiter) </Th> <Th> Friday Venus (Venus) </Th> <Th> Saturday Saturnus (Saturn) </Th> </Tr> <Tr> <Th> Italian </Th> <Td> domenica </Td> <Td> lunedì </Td> <Td> martedì </Td> <Td> mercoledì </Td> <Td> giovedì </Td> <Td> venerdì </Td> <Td> sabato </Td> </Tr>

How did we name the days of the week