Where does “firmament” come from?

firmament (Nauruan) comes from German firmament, from Middle High German firmament, from Latin firmamentum, 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.

firmament (Nauruan): firmament

Definitions

  1. firmament

Ancestry of “firmament”, step by step

StepLanguageWordMeaning
1Germanfirmamentfirmament the sky, especially when conceived as a dome
2Middle High Germanfirmament
3LatinfirmamentumA strengthening, support, prop, stay; The...
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-Every word from Proto-Indo-European dʰer-mo-sEvery word from Proto-Italic fermos