Where does “piweczko” come from?

piweczko (Polish) comes from Polish piwko, from Polish -ko, from Old Polish -ko, from Proto-Slavic -ъko.

Ancestry of “piweczko”, step by step

StepLanguageWordMeaning
1Polishpiwko—
2Polish-koDiminutive suffix for neuter nouns
3Old Polish-kodiminutive suffix for neuter nouns; may cause various vowel shifts
4Proto-Slavic-ъko—
Every word from Proto-Slavic -ъko →Every word from Polish -ko →Every word from Old Polish -ko →