Where does “firemka” come from?

firemka (Polish) comes from Polish firma, from Italian firma, from Italian firmare, from Latin firmō, from Latin Firmus, from Proto-Italic fermos, from Proto-Indo-European dʰer-mo-s, from Proto-Indo-European dʰer- — to support; to hold.

Ancestry of “firemka”, step by step

StepLanguageWordMeaning
1Polishfirmacompany
2Italianfirmasignature; third-person singular present...
3Italianfirmareto sign
4Latinfirmōto make firm, strengthen, harden, fortify
5LatinFirmusstrong, powerful
6Proto-Italicfermos
7Proto-Indo-Europeandʰer-mo-sholding
8Proto-Indo-Europeandʰer-to support; to hold
Every word from Proto-Indo-European dʰer-