day : (see irregularities )              sunday sōl (sun)            monday luna (moon)       tuesday mars (mars) wednesday mercurius (mercury) thursday iuppiter (jupiter)               friday venus (venus)   saturday saturnus ( saturn)
0                ancient greek     ἡμέρα ἡλίου hêméra hêlíou  ἡμέρα σελήνης hêméra selếnês  ἡμέρα ἄρεως hêméra áreôs     ἡμέρα ἑρμοῦ hêméra hermoú      ἡμέρα διός hêméra diós  ἡμέρα ἀφροδίτης hêméra aphrodítês    ἡμέρα κρόνου hêméra krónou
1                        latin                    dies sōlis                    dies lūnae               dies martis                 dies mercuriī                  dies jovis                       dies veneris                  dies saturnī
2                      italian                      domenica                        lunedì                   martedì                     mercoledì                     giovedì                            venerdì                        sabato
3               old portuguese                       domingo                          lues                    martes                      mércores                       joves                             vernes                        sábado
4                   portuguese                       domingo               segunda - feira             terça - feira                quarta - feira              quinta - feira                      sexta - feira                        sábado
5                      spanish                       domingo                         lunes                    martes                     miércoles                      jueves                            viernes                        sábado
6                     romanian                      duminică                          luni                     marţi                      miercuri                         joi                             vineri                        smbătă
7                       french                      dimanche                         lundi                     mardi                      mercredi                       jeudi                           vendredi                        samedi
8                     galician                       domingo                          luns                    martes                      mércores                       xoves                             venres                        sábado
9                      catalan                      diumenge                       dilluns                   dimarts                      dimecres                      dijous                          divendres                      dissabte
10                    asturian                       domingu                        llunes                    martes                     miércoles                      xueves                            vienres                        sábadu
11                    friulian                       domenie                         lunis                   martars                       miercus                       joibe                             vinars                        sabide
12                  neapolitan                     dummeneca                       lunnerì                   marterì                      miercurì                     gioverì                           viernarì                       sàbbatu
13                   sardinian                      dominiga                         lunis                    martis                      mercuris                      giobia                          chenabura                       sappadu
14                 interlingua                      dominica                        lunedi                   martedi                     mercuridi                      jovedi                            venerdi                       sabbato
15                         ido                        sundio                        lundio                    mardio                     merkurdio                      jovdio                           venerdio                      saturdio
16                   esperanto                       dimanĉo                         lundo                     mardo                      merkredo                       ĵaŭdo                           vendredo                        sabato
17                       irish      an domhnach dé domhnaigh              an luan dé luain        an mháirt dé máirt      an chéadaoin dé céadaoin      an déardaoin déardaoin                 an aoine dé haoine        an satharn dé sathairn
18             scottish gaelic  di - dòmhnaich / didòmhnaich          di - luain / diluain      di - màirt / dimàirt      di - ciadain / diciadain    di - ardaoin / diardaoin             di - haoine / dihaoine  di - sàthairne / disathairne
19                       welsh                      dydd sul                     dydd llun               dydd mawrth                  dydd mercher                    dydd iau                        dydd gwener                   dydd sadwrn
20                     cornish                       dy' sul                       dy' lun                dy' meurth                   dy' mergher                     dy' yow                         dy' gwener                    dy' sadorn
21                      breton                         disul                         dilun                  dimeurzh                     dimercher                     diriaou                           digwener                      disadorn
22                        manx                      jedoonee                        jelune                   jemayrt                       jecrean                    jerdrein                           jeheiney                        jesarn

Table as JSON:
{"day : (see irregularities )":{"0":"ancient greek","1":"latin","2":"italian","3":"old portuguese","4":"portuguese","5":"spanish","6":"romanian","7":"french","8":"galician","9":"catalan","10":"asturian","11":"friulian","12":"neapolitan","13":"sardinian","14":"interlingua","15":"ido","16":"esperanto","17":"irish","18":"scottish gaelic","19":"welsh","20":"cornish","21":"breton","22":"manx"},"sunday sōl (sun)":{"0":"ἡμέρα ἡλίου hêméra hêlíou","1":"dies sōlis","2":"domenica","3":"domingo","4":"domingo","5":"domingo","6":"duminică","7":"dimanche","8":"domingo","9":"diumenge","10":"domingu","11":"domenie","12":"dummeneca","13":"dominiga","14":"dominica","15":"sundio","16":"dimanĉo","17":"an domhnach dé domhnaigh","18":"di - dòmhnaich \/ didòmhnaich","19":"dydd sul","20":"dy' sul","21":"disul","22":"jedoonee"},"monday luna (moon)":{"0":"ἡμέρα σελήνης hêméra selếnês","1":"dies lūnae","2":"lunedì","3":"lues","4":"segunda - feira","5":"lunes","6":"luni","7":"lundi","8":"luns","9":"dilluns","10":"llunes","11":"lunis","12":"lunnerì","13":"lunis","14":"lunedi","15":"lundio","16":"lundo","17":"an luan dé luain","18":"di - luain \/ diluain","19":"dydd llun","20":"dy' lun","21":"dilun","22":"jelune"},"tuesday mars (mars)":{"0":"ἡμέρα ἄρεως hêméra áreôs","1":"dies martis","2":"martedì","3":"martes","4":"terça - feira","5":"martes","6":"marţi","7":"mardi","8":"martes","9":"dimarts","10":"martes","11":"martars","12":"marterì","13":"martis","14":"martedi","15":"mardio","16":"mardo","17":"an mháirt dé máirt","18":"di - màirt \/ dimàirt","19":"dydd mawrth","20":"dy' meurth","21":"dimeurzh","22":"jemayrt"},"wednesday mercurius (mercury)":{"0":"ἡμέρα ἑρμοῦ hêméra hermoú","1":"dies mercuriī","2":"mercoledì","3":"mércores","4":"quarta - feira","5":"miércoles","6":"miercuri","7":"mercredi","8":"mércores","9":"dimecres","10":"miércoles","11":"miercus","12":"miercurì","13":"mercuris","14":"mercuridi","15":"merkurdio","16":"merkredo","17":"an chéadaoin dé céadaoin","18":"di - ciadain \/ diciadain","19":"dydd mercher","20":"dy' mergher","21":"dimercher","22":"jecrean"},"thursday iuppiter (jupiter)":{"0":"ἡμέρα διός hêméra diós","1":"dies jovis","2":"giovedì","3":"joves","4":"quinta - feira","5":"jueves","6":"joi","7":"jeudi","8":"xoves","9":"dijous","10":"xueves","11":"joibe","12":"gioverì","13":"giobia","14":"jovedi","15":"jovdio","16":"ĵaŭdo","17":"an déardaoin déardaoin","18":"di - ardaoin \/ diardaoin","19":"dydd iau","20":"dy' yow","21":"diriaou","22":"jerdrein"},"friday venus (venus)":{"0":"ἡμέρα ἀφροδίτης hêméra aphrodítês","1":"dies veneris","2":"venerdì","3":"vernes","4":"sexta - feira","5":"viernes","6":"vineri","7":"vendredi","8":"venres","9":"divendres","10":"vienres","11":"vinars","12":"viernarì","13":"chenabura","14":"venerdi","15":"venerdio","16":"vendredo","17":"an aoine dé haoine","18":"di - haoine \/ dihaoine","19":"dydd gwener","20":"dy' gwener","21":"digwener","22":"jeheiney"},"saturday saturnus ( saturn)":{"0":"ἡμέρα κρόνου hêméra krónou","1":"dies saturnī","2":"sabato","3":"sábado","4":"sábado","5":"sábado","6":"smbătă","7":"samedi","8":"sábado","9":"dissabte","10":"sábadu","11":"sabide","12":"sàbbatu","13":"sappadu","14":"sabbato","15":"saturdio","16":"sabato","17":"an satharn dé sathairn","18":"di - sàthairne \/ disathairne","19":"dydd sadwrn","20":"dy' sadorn","21":"disadorn","22":"jesarn"}}