Where does “firma” come from?

firma (Portuguese) comes 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.

firma (Portuguese): company; signature

Definitions

  1. company; signature

Ancestry of “firma”, step by step

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