Where does “firmen” come from?

firmen (Middle High German) comes from Old High German firmōn, from Latin firmāre, 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 “firmen”, step by step

firmen traces back through two separate lines of ancestry.

via Old High German firmōn

StepLanguageWordMeaning
1Old High Germanfirmōn—
2Latinfirmāre—
3LatinFirmusstrong, powerful
4Proto-Italicfermos—
5Proto-Indo-Europeandʰer-mo-sholding
6Proto-Indo-Europeandʰer-to support; to hold

via Latin firmō

StepLanguageWordMeaning
1Latinfirmōto make firm, strengthen, harden, fortify
2Latin-ōsuffixed to nouns or adjectives. Originally a-stem nouns. Later extended to nouns with other stems. Forms regular first-conjugation verbs
3Proto-Indo-European-ōDerives nouns from roots

Words derived from “firmen”

Every word from Proto-Indo-European dʰer- →Every word from Proto-Indo-European dʰer-mo-s →Every word from Proto-Italic fermos →