Where does “dziadák” come from?

dziadák (Polish) comes from Polish dziad, from Proto-Slavic dědъ, from Proto-Balto-Slavic dēˀd-, from Proto-Indo-European dʰeh₁dʰ-, from Proto-Indo-European dʰeh₁(y)- — to suckle, nurse.

Ancestry of “dziadák”, step by step

StepLanguageWordMeaning
1Polishdziadgrandfather; old man; beggar
2Proto-Slavicdědъgrandfather
3Proto-Balto-Slavicdēˀd-—
4Proto-Indo-Europeandʰeh₁dʰ-—
5Proto-Indo-Europeandʰeh₁(y)-to suckle, nurse
Every word from Proto-Indo-European dʰeh₁(y)- →Every word from Proto-Indo-European dʰeh₁dʰ- →Every word from Proto-Balto-Slavic dēˀd- →