Where does “firmonomo” come from?

firmonomo (Esperanto) comes from Esperanto nomo, from French nom, from Old French nom, from Latin nōmen, from Latin est, from Proto-Indo-European h₁ésti, from Proto-Indo-European h₁es- — to be.

firmonomo (Esperanto): trade name, brand name

Definitions

trade name, brand name

Ancestry of “firmonomo”, step by step

firmonomo traces back through two separate lines of ancestry.

via Esperanto nomo

Step	Language	Word	Meaning
1	Esperanto	nomo	name
2	French	nom	A name, "especially" a last name or family name;...
3	Old French	nom	name
4	Latin	nōmen	name
5	Latin	est	third-person singular present active indicative...
6	Proto-Indo-European	h₁ésti	to be
7	Proto-Indo-European	h₁es-	to be

via Esperanto firmo

Step	Language	Word	Meaning
1	Esperanto	firmo	firm
2	Latin	firmō	to make firm, strengthen, harden, fortify
3	Latin	Firmus	strong, powerful
4	Proto-Italic	fermos	—
5	Proto-Indo-European	dʰer-mo-s	holding
6	Proto-Indo-European	dʰer-	to support; to hold

Every word from Proto-Indo-European h₁es- →Every word from Proto-Indo-European h₁ésti →Every word from Latin est →