Where does “subgrundo” come from?

subgrundo (Esperanto) comes from Esperanto grundo, from German Grund, from Middle High German grunt, from Old High German grunt, from Proto-West Germanic grundu, from Proto-Germanic grunduz, from Proto-Indo-European gʰrem-, from Proto-Indo-European gʰer- — to rub; to stroke; to grind.

subgrundo (Esperanto): subsoil

Definitions

  1. subsoil

Ancestry of “subgrundo”, step by step

subgrundo traces back through two separate lines of ancestry.

via Esperanto grundo

StepLanguageWordMeaning
1Esperantogrundoground, dirt, soil
2GermanGrundground, land; bottom; reason; motive
3Middle High Germangrunt—
4Old High Germangruntground
5Proto-West Germanicgrundu—
6Proto-Germanicgrunduzground, foundation
7Proto-Indo-Europeangʰrem-to be angry; to sound, bellow, growl, roar, be...
8Proto-Indo-Europeangʰer-to rub; to stroke; to grind

via Esperanto sub

StepLanguageWordMeaning
1Esperantosubunder, below
2Latinsubunder, beneath; behind; at the feet of
3Proto-Italicsupounder
4Proto-Indo-Europeanupóunder, below
5Proto-Indo-Europeanh₃ewp-—
Every word from Proto-Indo-European gʰer- →Every word from Proto-Indo-European gʰrem- →Every word from Proto-Germanic grunduz →