neither of these etymologies makes sense marqoz
Thank you for your good word, Gumishu.
So my hypothesis are crap and only you have possessed this deep reaching insight in the past far before the history started, before barbarians of Germanic or Slavonic origin even know how to read. Nice to meet somebody with these skills.
Take it easy - it is only etymology - and with languages with so short history like Germanic and moreover Slavonic - you have only hypotheses out there.
And you are right that Latin hypothesis is funny one - some folk staff but very old one. It was very popular from early modern times together with another explanation for curva meaning corner - you know where all working girls stand.
I can tolerate your German root proposal but only as one more hypothesis - let it be number 3). I have heard about that - but it has no clear phonetic path from Gothic HORS to Slavonic KUREW.
But we have one more and very promising hypothesis:
4) In very old Polish KUR = cock and KUREW = hen
If Polish KUR, English COCK and Latin PETUX mean male gender of chicken,
and if simultaneously all these words mean also penis,
so KUREW could mean also the complement or other part of penis or vagina.
Now we are just close to final association and here you are:
If KOGUT = rooster or penis - is used to call a horny man or a cocksman in slangish,
so KUREW = hen or vagina - could be used to call a whore or a c*nt in slangish.
It is some kind of pars-pro-toto association.
And, hello, Gumishu, suffix -WA sometimes is a transformed female noun form with -EW (it could be the case of kurew) but in the other words it could be a collectiva like in DZIATWA = all the children, GĘSTWA - all the shrub, LITWA - all the Lithuanians, TATARWA - all the Tartars.