Where does “крилник” come from?

крилник (Serbo-Croatian) comes from Serbo-Croatian кри́ло, from Proto-Slavic kridlo, from Proto-Slavic -dlo, from Proto-Indo-European -dʰlom — Alternative form of *-trom; instrumental suffix;...

Definitions

Ancestry of “крилник”, step by step

StepLanguageWordMeaning
1Serbo-Croatianкри́лоwing
2Proto-Slavickridlowing
3Proto-Slavic-dloForms nouns denoting a tool or instrument
4Proto-Indo-European-dʰlomAlternative form of *-trom; instrumental suffix;...
Every word from Proto-Indo-European -dʰlom →Every word from Proto-Slavic -dlo →Every word from Proto-Slavic kridlo →