*Miesiący* as Genitive Plural


I have a question about the form "miesiący": Why is it not declined like "prysznic", "widelec" or "lipiec"? Their stems all end in c, I do not see the reason for "miesiąc" not to become "miesiąców" as do all of his friends.

Dziękuję! Tarek

June 3, 2017


Frankly, often there's no better answer than "That's just the way it is". I mean, someone can come here with knowledge of phonological processes, but the question is if it would really be helpful, and not rather just 'complicated' ;)

Let's think of other nouns ending with -ąc

zając (a hare) -> Gen. plural zajęcy

Aaaand actually I cannot think of anything else right now. But the pattern is the same here.

June 4, 2017

Yes, this is already really helpful for me.

June 4, 2017

One similar example, although with an a bit different ending:

pieniądze (or even singular 'pieniądz') -> Genitive plural "pieniędzy"

June 4, 2017

Cześć Tarek!

I believe that you have a typo, it's "miesięcy" (note the ę instead of ą).

I'm not really good with grammar, but as a Polish native no less, I can tell you one thing: our language is full of exceptions and even rules that take the form of exceptions to exceptions. It was frustrating back when I was in school and is without the shadow of the doubt frustrating to foreigners interested in the language.

It's pretty much a non-answer, but I hope that someone more knowledgeable will come along and give us both a lesson. ;)

Z wyrazami szacunku, Daniel

June 3, 2017

Hard to answer in general. Some thoughts:

1) Miesiąc is an old name for the Moon. Its quite logical.
2) If a man and woman were married and having the name „Miesiąć” we would normally say „Miesiąców”.
3) We also have: tysiąc (one thousand) -> tysięcy, but again if treated as surname: Tysiąców
4) Zając (a hare) -> zajęcy, form zająców is used less often
5) Similarly to pieniądz: wrzeciądz -> wrzeciędzy
6) Grudziądz - proper name, has no plural but if it had, it could be: Grudziędzy or Grudziądzów

Other examples:

  • mosiądz - mosiądzów (I found that in very old days one would use mosiędzy)
  • ksiądz - księży

This pattern seems to be very very old and currently out of further use. Moreover -ąc, -ądz endings are nearly unused when it comes to nouns other than gerunds.

June 4, 2017

Thanks a lot! I am glad to see that there's a pattern even though the Polish seem to have much structural recombination which leads to quite a number of exceptions. Referring to 1) you can see this in some other languages I can think of:

  • German: Mond > Monat
  • English: moon > month
  • Ancient Greek: mene > men
  • Ancient Hebrew: yareach > yerach
June 5, 2017
  • 1347

Look here: Tabele odmiany Jana Tokarskiego , position "Grupa deklinacyjna m II" (declension type male II).

In other words it is similar pattern as:

  • tysiąc (thousand) → tysięcy
  • biegacz (runner) → biegaczy
  • badacz ( researcher ) → badaczy
  • lekarz (doctor) → lekarzy
  • węgorz (eel) → węgorzy
  • wąż (snake) → węży (stem changed)
  • pieniądz (coin; money) → pieniędzy (stem changed)

And on that page you can find a detailed list of all types of declension including ALL the nuances and variations : Deklinacja - see:

A concise list of related flection endings with the number of declension type: Deklinacja rzeczowników

And here is an extensive list of nouns arranged by their type of declension, according by these declension types:

June 18, 2017
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