Where does “колпачок” come from?

колпачок (Russian) comes from Russian -о́к, from Proto-Slavic -ъkъ, from Proto-Slavic -kъ, from Proto-Indo-European -kos — Creates deadjectival and desubstantival...

колпачок (Russian): small high-crowned cap: cook cap, kalpak, fool's cap, nightcap, etc

Definitions

  1. small high-crowned cap: cook cap, kalpak, fool's cap, nightcap, etc

Ancestry of “колпачок”, step by step

StepLanguageWordMeaning
1Russian-о́кtakes masculine nouns, produces diminutive masculine nouns, sometimes with further sense development
2Proto-Slavic-ъkъForms diminutives from old u-stem nouns;...
3Proto-Slavic-kъDeverbal, forms token nouns; From expressive or...
4Proto-Indo-European-kosCreates deadjectival and desubstantival...
Every word from Proto-Indo-European -kosEvery word from Russian -о́кEvery word from Proto-Slavic -kъ