Where does “Kwil” come from?

Kwil (Polish) comes from Polish kwilić, from Proto-Slavic kviliti — to wail.

Ancestry of “Kwil”, step by step

Kwil traces back through two separate lines of ancestry.

via Polish kwilić

StepLanguageWordMeaning
1Polishkwilićto wail; to whimper
2Proto-Slavickvilitito wail

via Polish kwil

StepLanguageWordMeaning
1Polishkwilsecond-person singular imperative of kwilić
Every word from Proto-Slavic kviliti →Every word from Polish kwilić →
Kwil — Etymology, Origin & Word History | Etymology Explorer