Why is Monday so hard in Polish?

 I'll probably never know the answer but I was stunned when I saw this on my new Spanish-Polish book:

Why?, the first day is supposed to be the easier one! lol


Latin: dies lunae
Spanish: lunes
Portuguese: segunda (well, this doesn't follow the Latin root but it does make sense with the following days; Tuesday= terça [which literally means "third"]; Wednesday = quarta [fourth]; Thursday = quinta [fifth] and so on.
French: lundi
Italian: lunedi
English: Monday
German: Montag
Polish: poniedziałek !!! :/ it'd not be so dramatic if the word moon wouldn't be so different księżyc.


Nie rozumiem, co znaczy?


Edit:  Now I know! thanks to Google Translate I started to check how to say Monday in other languages, tried Dutch and it's Maandag then Swedish and still German alike, Måndag then I thought about going east and it is then when I found out! Ponedelʹnik in Russian and then Slovak and Slovenian are similar, so this image of an old post came to mind, of course! i was looking at the wrong branch and now I know, days of the week in Polish come from Slavic!


 Anyways, I've been with some health problems lately that put me under the weather for a while... but I'm ok now just trying to get back to normal, at least I'm not feeling depressed anymore, so that's good.
  I've abandoned this blog and I'm not proud of it, but it wouldn't be fair if I write depressing stuff here, it's not my goal so, I'll try to keep posting stuff, I have done so many things related to crafting and stuff, I just have to take pics and organize them, all this time I've thought about posting them but I'm perfectionist (and also a procrastinator :woops:)


So if anyone is reading this, have a good jueves/Donnerstag/Thursday or Thor's day (nice!) or like Polish say: Czwartek!


Be happy.