Swedish word tisdag comes from Proto-Germanic *Tīwaz, Latin Mars (War, battle, conflict Mars (Roman god). Mars (planet).), Proto-Germanic *dagis, Latin dies
| Dictionary entry | Language | Definition |
|---|---|---|
| *Tīwaz | Proto-Germanic (gem-pro) | (Runic alphabet) name of the T-rune (ᛏ). Tyr, the Germanic god of war. Identified in later times with the Roman god Mars. |
| Mars | Latin (lat) | War, battle, conflict Mars (Roman god). Mars (planet). |
| *dagis | Proto-Germanic (gem-pro) | |
| dies | Latin (lat) | (often in the feminine) A set day: a date, an appointment.. A day, particularly:. A solar or sidereal day of about 24 hours, especially (historical) Roman dates reckoned from one midnight to the next.. Daytime: a period of light between sunrise and sunset. |
| Týr | Old Norse (non) | An áss in Old Norse mythology. |
| dagr | Old Norse (non) | (in the plural) days, times. A day. |
| dies Martis | Latin (lat) | Tuesday. |
| *Tīwas dagaz | Proto-Germanic (gem-pro) | Tuesday. |
| týrsdagr | Old Norse (non) | |
| tisdagher | Old Swedish (gmq-osw) | |
| tisdag | Swedish (sv) | Tuesday. The second day of the week (according to the ISO 8601 standard). |