Where does “dopiyrutko” come from?

dopiyrutko (Polish) comes from Polish -utki, from Polish -ki, from Proto-Slavic -ъkъ, from Proto-Slavic -kъ, from Proto-Indo-European -kos — Creates deadjectival and desubstantival...

Ancestry of “dopiyrutko”, step by step

StepLanguageWordMeaning
1Polish-utkidiminutive adjective suffix
2Polish-kiforms masculine adjectives
3Proto-Slavic-ъkъForms diminutives from old u-stem nouns;...
4Proto-Slavic-kъDeverbal, forms token nouns; From expressive or...
5Proto-Indo-European-kosCreates deadjectival and desubstantival...
Every word from Proto-Indo-European -kos →Every word from Proto-Slavic -kъ →Every word from Polish -utki →