Where does “dopiruchno” come from?

dopiruchno (Polish) comes from Polish dopiero, from Old Polish dopiro, from Proto-Slavic *topьrvo — there, here (it is), voilà.

Ancestry of “dopiruchno”, step by step

StepLanguageWordMeaning
1Polishdopierobarely, scarcely, just
2Old Polishdopirothen
3Proto-Slavic*topьrvothere, here (it is), voilà
Every word from Proto-Slavic *topьrvo →Every word from Old Polish dopiro →Every word from Polish dopiero →